Harry Potter Characters

The Harry Potter film series has had 100s of British actors play major and minor parts in the amazing film we know today.
==Main Cast== 
===Harry Potter=== 
Harry is a teen boy who fights the evil Lord Voldemort to bring peace to the Magical World. 
==Characters alphabetical by surname and name==
===A===
*Mrs. Abbott – Mother of Hannah Abbott, killed by Death Eaters
*Hannah Abbott – Hufflepuff student in Harry Potter's year, member of Dumbledore's Army
* Euan Abercrombie- Gryffindor student who enters Hogwarts in Harry's fifth year
*Stewart Ackerley – Ravenclaw student who enters Hogwarts in Harry's fourth year
*Falco Aesalon – Ancient Greek wizard, first known Animagus
*Cornelius Agrippa – Celebrated German wizard who authored more than one book. Imprisoned by muggles because they thought his works were evil
*Olaf Andersen – Nordic Quidditch Chaser
*Chavelle Arbelo Cartaya – Spanish Quidditch Chaser
*Avery - One of the first Death Eaters, Slytherin student during Severus Snape's time at Hogwarts
*Olivia Arpa- one of the first members to enter the building of the death eaters.
*Amy Benson- A muggle who Tom Riddle took to a cave and was never "quite right" afterwards
===B===
*Bathsheda Babbling – Ancient Runes teacher at Hogwarts
*Malcolm Braddock – Slytherin student who is at Hogwarts during Harry's fourth year
*Mr Bagman – Father of Ludovic and Otto Bagman, friend of Death Eater Augustus Rookwood
*Ludovic Bagman – Quidditch Beater for the Wimbourne Wasps and Head of the Department of Magical Games and Sports within the Ministry of Magic
*Otto Bagman – Brother of Ludovic Bagman
*Millicent Bagnold (Not to be confused with Millicent Bulstrode) – Minister of Magic before Cornelius Fudge
*Bathilda Bagshot – Author of A History of Magic, great aunt of Gellert Grindelwald.
*Heathcote Barbary – Guitarist for the Weird Sisters
*Bethany St. Urry - French Quidditch seeker
*Musidora Barkwith – Composer noted for her work, Wizarding Suite
*Baruffio – Namesake of 'Baruffio's Brain Elixir'
*Ali Bashir – Flying carpet merchant who attempts to establish a flying carpet business in Britain in Goblet of Fire
*Bastien – French Quidditch Keeper
*Hetty Bayliss – Muggle who witnesses Arthur Weasley's flying Ford Anglia
*Oswald Beamish – Goblin rights pioneer
*Herbert Beery – Past Herbology teacher at Hogwarts who left to teach at the Wizarding Academy of Dramatic Arts
*Flavius Belby – First wizard to write about the lethifold
*Marcus Belby – Ravenclaw student at Hogwarts one year above Harry Potter and nephew of the inventor of the Wolfsbane potion
*Humphrey Belcher – Wizard who experimented with cheese cauldrons
*Katie Bell – Gryffindor student one year above Harry Potter; Chaser on the Gryffindor Quidditch team. In her seventh year, she was cursed by a magic necklace.
*Amy Benson – Girl at the orphanage with Tom Marvolo Riddle (later Lord Voldemort.)
*Cuthbert Binns – Ghost, History of Magic professor
*Dennis Bishop – Boy at the orphanage with Tom Marvolo Riddle (later Lord Voldemort.)
*Alphard Black – Son of Pollux Black and Irma Crabbe, brother of Cygnus and Walburga Black, maternal uncle to Sirius Orion and Regulus Arcturus Black, disowned for financially supporting Sirius Black after he left home to live with the Potter family
*Arcturus Black I - Early member of the House of Black; possibly brother of Cygnus Black I and Misapinoa Black
*Arcturus Black II - Son of Phineas Nigellus Black and Ursula Flint, husband of Lysandra Yaxley, father of Callidora, Cedrella and Charis Black, grandfather of Arthur Weasley
*Arcturus Black III – Son of Sirius Black II and Hesper Gamp, husband of Melania MacMillan, father of Lucretia and Orion Black, grandfather of Sirius Orion and Regulus Arcturus Black
*Cassiopeia Black – Daughter of Cygnus Black I and Violetta Bulstrode, sister of Pollux, Marius, and Dorea Black
*Cygnus Black I - son of Phineas Nigellus Black and Ursula Flint, husband of Violetta Bulstrode, father of Pollux, Cassiopeia, Marius and Dorea Black, possible great-grandfather of Harry Potter
*Cygnus Black II – Son of Pollux Black and Irma Crabbe, brother of Walburga and Alphard Black, husband of Druella Rosier, father of Bellatrix, Andromeda, and Narcissa Black, maternal uncle to Sirius and Regulus Arcturus Black, great-grandson of Phineas Nigellus Black, grandfather of Nymphadora Lupin (née Tonks) and Draco Malfoy
*Druella Black (née Rosier) – Wife of Cygnus Black, mother of Bellatrix, Andromeda, and Narcissa Black, grandmother of Nymphadora Lupin (née Tonks) and Draco Malfoy
*Elladora Black – Sister of Phineas Nigellus, Sirius, and Isla Black. Started a tradition of beheading house elves when they weren't useful anymore
*Hesper Black (née Gamp) - Wife of Sirius Black II, mother of Arcturus, Lycoris, and Regulus Black
*Irma Black (née Crabbe) – Wife of Pollux Black, mother of Walburga, Alphard and Cygnus Black, grandmother of Sirius Orion and Regulus Arcturus Black
*Lycoris Black - Daughter of Sirius Black II and Hesper Gamp
*Lysandra Black (née Yaxley) – Wife of Arcturus Black, mother of Callidora, Charis and Cedrella Black, grandmother of Arthur Weasley
*Marius Black – Son of Cygnus Black I and Violetta Bulstrode, brother of Pollux, Cassiopeia and Dorea Black, disowned for being a Squib
*Melania Black (née MacMillan) – Wife of Arcturus Black, mother of Lucretia and Orion Black, grandmother of Sirius Orion and Regulus Arcturus Black
*Orion Black – Son of Arcturus Black III and Melania MacMillan, brother of Lucretia Black, husband of Walburga Black, father of Sirius Orion and Regulus Arcturus Black
*Phineas Black – Son of Phineas Nigellus Black and Ursula Flint, brother of Sirius, Cygnus, Belvina and Arcturus Black, disowned for supporting Muggle rights
*Phineas Nigellus Black – Brother of Sirius, Elladora, and Isla Black, husband of Ursula Flint, father of Sirius, Phineas, Cygnus, Belvina and Arcturus (II) Black, least popular Hogwarts Headmaster
*Pollux Black – Son of Cygnus Black I and Violetta Bulstrode, husband of Irma Crabbe, father of Walburga, Alphard and Cygnus Black, grandfather of Sirius Orion and Regulus Arcturus Black
*Regulus Black I - Son of Sirius Black II and Hesper Gamp
*Regulus Arcturus Black – Son of Orion and Walburga Black, brother of Sirius Black, Slytherin Quidditch Seeker, reformed Death Eater
*Sirius Black I – Brother of Phineas Nigellus, Elladora and Isla Black, died at a young age
*Sirius Black II – Son of Phineas Nigellus and Ursula Flint, husband of Hesper Gamp, father of Arcturus, Lycoris and Regulus Black
*Sirius Orion Black – Son of Orion and Walburga Black, brother of Regulus Arcturus Black, godfather of Harry Potter, Gryffindor student at Hogwarts (only Black not to be in Slytherin), Animagus, Marauder, disowned for running away from home to live with the Potter family, member of the Order of the Phoenix, killed by his cousin Bellatrix Lestrange
*Ursula Black (née Flint) – Wife of Phineas Nigellus Black, mother of Sirius, Phineas, Cygnus, Belvina and Arcturus Black
*Violetta Black (née Bulstrode) – Wife of Cygnus Black, mother of Pollux, Cassiopeia, Marius and Dorea Black
*Walburga Black (née Black) – Daughter of Pollux Black and Irma Crabbe, sister of Alphard and Cygnus Black, wife of Orion Black, mother of Sirius Orion and Regulus Arcturus Black
*Balfour Blane – Established the Committee on Experimental Charms
*Timothy Blenkinsop – Puddlemere United supporter
*Bletchley – Ministry of Magic employee whose office was drenched with rain
*Miles Bletchley – Keeper on the Slytherin Quidditch team during Harry's time at Hogwarts
*Kursten Blijk – German Quidditch Chaser
*Beatrix Bloxam (1794–1910) – Author of the banned children's book series The Toadstool Tales
*Blodwyn Bludd – Vampire who was known as the 'Vampire of the Valleys'. Famous for singing to his victims before biting them in their neck.
*Stubby Boardman – Lead singer of the Hobgoblins, claimed in The Quibbler to be Sirius Black's secret identity
*Melinda Bobbin – Hogwarts student during Harry's time at school, her family owns a chain of apothecaries
*Broderick Bode – Ministry of Magic employee in the Department of Mysteries, killed by Devil's Snare
*Lucian Bole – Slytherin Quidditch Beater
*Pierre Bonaccord – First Supreme Mugwump of the International Confederation of Wizards
*Amelia Susan Bones – Head of the Department of Magical Law Enforcement, aunt of Susan Bones
*Edgar Bones – Member of the original Order of the Phoenix, brother of Amelia Susan Bones, uncle of Susan Bones
*Susan Bones – Hufflepuff student in Harry's year, member of Dumbledore's Army
*Mungo Bonham – Healer who founded St. Mungo's Hospital for Magical Maladies and Injuries, Wizard of the Month on J. K. Rowling’s website for March 2005
*Terry Boot – Ravenclaw student in Harry's year, member of Dumbledore's Army.
*Libatius Borage – Author of Advanced Potion-Making
*Borgin – Proprietor of Borgin and Burkes in Knockturn Alley
*Bertie Bott – Creator of Bertie Bott's Every Flavour Beans
*Bradley – Chaser on the Ravenclaw Quidditch team during Harry's time at Hogwarts
*Barberus Bragge – Chief of the Wizards' Council, introduced the Golden Snitch to Quidditch
*Betty Braithwaite – Reporter for The Daily Prophet
*Igor Brand – German Quidditch Chaser
*Rudolf Brand – Captain of the Heidelberg Harriers Quidditch team
*Maximus Brankovitch III – American Quidditch Seeker and Seeker for the Fitchburg Finches
*Eleanor Branstone – Hufflepuff student who entered Hogwarts in Harry's fourth year
*Karl Broadmoor – Beater for the Falmouth Falcons Quidditch team with his brother Kevin
*Kevin Broadmoor – Beater for the Falmouth Falcons Quidditch team with his brother Karl
*Mandy Brocklehurst – Ravenclaw student in Harry's year
*Rupert "Axebanger" Brookstanton – Name across which Hermione Granger came while searching for the identity of R.A.B.
*Lavender Brown – Gryffindor student in Harry's year, member of Dumbledore's Army, briefly Ron Weasley's girlfriend, mauled by Fenrir Greyback in the Battle of Hogwarts
*Mr Brown – Husband of Mrs Brown, father of Lavender Brown
*Mrs Brown – Wife of Mr Brown, mother of Lavender Brown
*Frank Bryce – Muggle gardener for the Riddle family, murdered by Lord Voldemort
*Millicent Bulstrode – Slytherin student in Harry's year, member of Umbridge's Inquisitorial Squad
*Rosalind Antigone Bungs – Name across which Hermione Granger came while searching for the identity of R.A.B.
*Charity Burbage – Professor of Muggle Studies at Hogwarts during Harry's time at school, killed by Lord Voldemort in Deathly Hallows
*Caractacus Burke – Co-founder of Borgin and Burkes. Cheated Merope Gaunt, buying a precious heirloom from her for only 10 Galleons
*Belvina Burke (née Black) – Daughter of Phineas Nigellus Black and Ursula Flint, sister of Sirius, Phineas, Cygnus and Arcturus Black, wife of Herbert Burke, mother of two sons and one daughter
*Herbert Burke – Husband of Belvina Black, father of two sons and one daughter
*Randolph Burrow – Ravenclaw Quidditch Chaser during Harry's time at Hogwarts
===C===
*Sir Cadogan – Armoured knight occupying a painting in Hogwarts
*Cadwallader – Hufflepuff Quidditch Chaser during Harry's time at Hogwarts
*Angus Campbell – Chaser for the Montrose Magpies Quidditch team
*Lennox Campbell – Seeker for the Montrose Magpies Quidditch team
*S. Capper – Hogwarts student during Harry's time at school
*Eddie Carmichael – Ravenclaw student one year above Harry Potter
*Alecto Carrow – Sister of Amycus Carrow, Death Eater and professor of Muggle Studies for one year, Deputy Headmistress of Hogwarts under Severus Snape
*Amycus Carrow – Brother of Alecto Carrow, Death Eater and professor of Defence Against the Dark Arts for one year, even though he changed it to just "Dark Arts", Deputy Headmaster of Hogwarts under Severus Snape
*Greta Catchlove – Author of Charm Your Own Cheese
*Mary Cattermole – Muggle-born daughter of Muggle greengrocers, wife of Reginald Cattermole, mother of Maisie, Ellie and Alfred Cattermole, saved by Harry Potter from Ministry of Magic#The Muggle-born Registration Commission
*Ellie Cattermole – Daughter of Reginald and Mary Cattermole, sister of Alfred and Maisie Cattermole
*Maisie Cattermole – Daughter of Reginald and Mary Cattermole, sister of Alfred and Ellie Cattermole
*Alfred Cattermole – Son of Reginald and Mary Cattermole, brother of Ellie and Maisie Cattermole 
*Reginald Cattermole – Employee of the Magical Maintenance Department for the Ministry of Magic, husband of Mary Cattermole, father of Alfred, Maisie and Ellie Cattermole
*Owen Cauldwell – Hufflepuff student who entered Hogwarts during Harry's fourth year
*Chambers – Ravenclaw Quidditch Chaser during Harry's time at Hogwarts
*Cho Chang – Ravenclaw student one year above Harry, Quidditch Seeker, member of Dumbledore's Army, and Harry's first love interest
*Glenda Chittock – Presenter of Witching Hour on the Wizarding Wireless Network, J. K. Rowling's Wizard of the Month for October 2004
*Herbert Chorley – Muggle Junior Minister who received a botched Imperius Curse that left him impersonating a duck and attacking innocent civilians
*Indira Choudry – English Quidditch Beater
*Agatha Chubb – Wizarding archaeologist who found twelve lead Bludgers from the sixteenth century
*Elfrida Clagg – Chieftainess of the Warlock's Council, made the Golden Snidget a protected species, J. K. Rowling's Wizard of the Month for June 2005
*Penelope Clearwater – Muggle-born (or half-blood) Ravenclaw prefect four years above Harry, girlfriend of Percy Weasley
*Edgar Clogg – Ghost who hangs around the Hogwarts Quidditch pitch
*Mrs Cole – Matron of Tom Riddle's orphanage
*Magenta Comstock – Experimental artist, J. K. Rowling's Wizard of the Month for April 2007
*Connolly – Beater for the Irish national Quidditch team
*Buckley Cooper – Daily Prophet reader
*Howland Coopey – Daily Prophet reader with Dragon Pox
*Ritchie Coote – Beater on the Gryffindor Quidditch team during Harry's sixth year
*Michael Corner – Ravenclaw student in Harry's year, member of Dumbledore's Army, Ginny Weasley and Cho Chang's boyfriend
*Gregory Cotton – Seeker for the Appleby Arrows Quidditch team
*Vincent Crabbe, Sr. – Death Eater, father of Vincent Crabbe
*Vincent Crabbe – Slytherin student in Harry's year, son of Death Eater, Slytherin Quidditch team Beater, member of the Inquisitorial Squad, killed in the Room of Requirement after using an uncontrolable fiendfyre curse
*Mr. Creevey – Muggle milkman, father of Colin and Dennis Creevey
*Colin Creevey – Muggle-born Gryffindor student one year below Harry, brother of Dennis Creevey, member of Dumbledore's Army, killed during the Battle of Hogwarts, after sneaking away from the younger evacuated students in the seventh book
*Dennis Creevey – Muggle-born Gryffindor student three years below Harry, brother of Colin Creevey, member of Dumbledore's Army
*Dirk Cresswell – Muggle-born Head of the Goblin Liaison Office, went on the run in Deathly Hallows with fellow muggle-born Ted Tonks, Dean Thomas and goblins Gornick and Griphook, killed by snatchers along with Ted and Gornick 
*Croaker – Ministry of Magic employee in the Department of Mysteries
*Doris Crockford – Meets Harry Potter in the Leaky Cauldron on the day Harry returns to the Wizarding world
*Crispin Cronk – Sent to Azkaban for keeping sphinxes in his backyard
*Glinda Crook – Works for the Campaign for Greater Freedom for Wizards
*Bartemius "Barty" Crouch, Sr. – Head of the Department of International Magical Cooperation, father of Barty Crouch Jr, killed by his son
*Bartemius "Barty" Crouch, Jr. – Death Eater, son of Barty Crouch Sr., credited with facilitating the return of Lord Voldemort, received a Dementor's Kiss
*Caspar Crouch – Husband of Charis Black, father of one son and two daughters
*Charis Crouch (née Black) – Daughter of Arcturus Black II and Lysandra Yaxley, wife of Caspar Crouch, mother of one son and two daughters
*Mrs Crouch – Wife of Bartemius Crouch Sr, mother of Bartemius Crouch Jr
*Gideon Crumb – Plays bagpipes for the Weird Sisters
*Barnabas Cuffe – Editor of the Daily Prophet
*Harold Carfucus- A famous man who has tried every flavor of Berttie Bott's Every Flavored Beans
===D===
*Hector Dagworth-Granger – Founder of the Most Extraordinary Society of Potioneers
*Roger Davies – Ravenclaw student two years above Harry, Quidditch Chaser and Captain, attended the Yule Ball with Fleur Delacour
*Tracey Davis - Slytherin student in Harry's year; best friend of Daphne Greengrass
*John Dawlish – Auror
*Sendelina de la Felino – Spanish Quidditch Keeper
*Ana de Lebron – Spanish Quidditch Chaser
*Sir Nicholas de Mimsy-Porpington/Nearly Headless Nick – Gryffindor House ghost
*Caradoc Dearborn – Member of the original Order of the Phoenix
*Apolline Delacour – Wife of Monsieur Delacour (first name unknown), mother of Fleur and Gabrielle Delacour, grandmother of Victoire, Dominique and Louis Weasley
*Fleur Isabelle Delacour – Daughter of Apolline and Monsieur Delacour (first name unknown), sister of Gabrielle Delacour, wife of Bill Weasley, mother of Victoire, Dominique and Louis Weasley, participated in the Triwizard Tournament representing Beauxbatons
*Gabrielle Delacour – Daughter of Apolline and Monsieur Delacour (first name unknown), sister of Fleur Delacour, aunt of Victoire. Dominique and Louis Weasley
*Monsieur Delacour (first name unknown) – Husband of Apolline Delacour, father of Fleur and Gabrielle Delacour, grandfather of Victoire, Dominique and Louis Weasley
*Sir Patrick Delaney-Podmore – Bearded ghost who leads the Headless Hunt
*Peregrine Derrick – Beater for the Slytherin Quidditch team, three years above Harry
*Dilys Derwent – St. Mungo's Healer and Headmistress of Hogwarts
*Barnabas Deverill – One-time owner of the Elder Wand, killed by Loxias
*Philbert Deverill – Manager of Puddlemere United
*Dedalus Diggle – Member of the Order of the Phoenix
*Amos Diggory – Works for the Department for the Regulation and Control of Magical Creatures, father of Cedric Diggory
*Cedric Diggory – Hufflepuff student three years above Harry, school prefect, Quidditch Seeker and captain, co-winner of the Triwizard Tournament, killed by Peter Pettigrew on Voldemort's orders.
*Mrs Diggory – Mother of Cedric Diggory, wife of Amos Diggory
*Ivor Dillonsby – Interviewed by Rita Skeeter for her book The Life and Lies of Albus Dumbledore
*Vasily Dimitrov – Chaser for the Bulgarian national Quidditch team
*Harold Dingle – Student at Hogwarts during Harry's time at school
*Armando Dippet – Headmaster of Hogwarts in Tom Riddle's time
*Emma Dobbs – Hogwarts student three years below Harry 
*Daisy Dodderidge – Builder and landlady of the Leaky Cauldron, J. K. Rowling’s Wizard of the Month for March 2006
*Elphias Doge – Member of the original Order of the Phoenix, Special Advisor to the Wizengamot, long-time friend of Albus Dumbledore
*Antonin Dolohov – Death Eater, killed Fabian Prewett, Gideon Prewett, and Remus Lupin, defeated by Filius Flitwick
*Mary Dorkins – Muggle news reporter
*Ragmar Dorkins – Manager of the Chudley Cannons Quidditch team
*J. Dorny – Hogwarts student during Harry's time at school
*Kirley Duke – Lead guitarist for the popular Wizarding band The Weird Sisters.
*Matilda Dukelow – Holyhead Harpies fan
*Aberforth Dumbledore – Son of Percival and Kendra Dumbledore, brother of Albus and Ariana Dumbledore, owner of the Hog's Head
*Albus Percival Wulfric Brian Dumbledore – Son of Percival and Kendra Dumbledore, brother of Aberforth and Ariana Dumbledore, Hogwarts Headmaster in Harry Potter's time, Transfiguration professor in Tom Riddle's time, founder of the Order of the Phoenix, Order of Merlin First Class, Supreme Mugwump of the International Confederation of Wizards, Chief Warlock of the Wizengamot, killed by Severus Snape
*Ariana Dumbledore – Daughter of Percival and Kendra Dumbledore, sister of Aberforth and Albus Dumbledore
*Kendra Dumbledore – Muggle-born wife of Percival Dumbledore, mother of Albus, Aberforth, and Ariana Dumbledore
*Percival Dumbledore – Husband of Kendra Dumbledore, father of Albus, Aberforth, and Ariana Dumbledore, imprisoned in Azkaban after hexing three Muggles.
*B. Dunstan – Hogwarts student while Harry is attending the school
*Dudley Dursley – Muggle son of Vernon Dursley and Petunia Evans, first cousin of Harry Potter, husband of Mrs. Dursley, father of several children
*Marjorie "Marge" Dursley – Muggle sister of Vernon Dursley, aunt of Dudley Dursley, great-aunt of Dudley's children
*Petunia Dursley (née Evans) – Muggle daughter of Mr and Mrs Evans, sister of Lily Evans, wife of Vernon Dursley, mother of Dudley Dursley, aunt of Harry Potter, mother-in-law of Mrs. Dursley, grandmother of Dudley's children, great-aunt of James Sirius, Albus Severus and Lily Luna Potter
*Vernon Dursley – Muggle son of Mr and Mrs Dursley, brother of Marge Dursley, husband of Petunia Evans, father of Dudley Dursley, uncle of Harry Potter, father-in-law of Mrs Dursley, grandfather of Dudley's children, great-uncle of James Sirius, Albus Severus and Lily Luna Potter 
*Troy "Tank" Duvall – American Quidditch Beater
===E===
*Lorcan d'Eath – Part-vampire singer, J. K. Rowling's Wizard of the Month for November 2006
*Matthew Echunga – Australian Quidditch Chaser
*Marietta Edgecombe – Ravenclaw student one year above Harry, traitor to Dumbledore's Army
*Madam Edgecombe – Works in the Floo Network Office, mother of Marietta Edgecombe
*Mordicus Egg – Author of The Philosophy of the Mundane: Why Muggles Prefer Not to Know
*Elena Eldritch – German Quidditch Beater
*Ellerby – Manufacturer of the 1940 Tinderblast broom
*Laurendrous Ellison – Disabled Muggle ambassador at Gringotts
*Mark Evans – Unrelated to the Evans family. Five years younger than Harry and his cousin Dudley, he was a victim of the terrors of Dudley's gang. M. E. is a muggle. However, his surname, the same as Harry's mother's family, caused curiosity in many readers; J. K. Rowling has announced he is in no sense related to Lily or Petunia but a name she never considered.
*Mr Evans - Muggle husband of Mrs Evans, father of Lily and Petunia Evans, father-in-law of Vernon Dursley and James Potter, grandfather of Harry Potter and Dudley Dursley
*Mrs Evans - Muggle wife of Mr Evans, mother of Lily and Petunia Evans, mother-in-law of Vernon Dursley and James Potter, grandmother of Harry Potter and Dudley Dursley
*Everard – Former Headmaster of Hogwarts, a particularly famous wizard, whose portrait hangs in many institutions, including the Ministry
===F===
*Perpetua Fancourt – Inventor of the Lunascope
*Sara Fawcett – Ravenclaw student in Harry's year
*Gianni Fedele – American Quidditch Chaser
*Benjy Fenwick – Member of the original Order of the Phoenix
*Arabella Doreen Figg – Squib neighbour of the Dursleys', member of the Order of the Phoenix.
*Argus Filch – Squib caretaker of Hogwarts
*Justin Finch-Fletchley – Muggle-born Hufflepuff student in Harry's year, member of Dumbledore's Army.
*Mr Finnigan – Muggle husband of Mrs Finnigan, father of Seamus Finnigan
*Mrs Finnigan – Witch wife of Mr Finnigan, mother of Seamus Finnigan
*Seamus Finnigan – Son of Mr and Mrs Finnigan, Irish Gryffindor student in Harry's year, member of Dumbledore's Army, attends the Yule Ball with Lavender Brown.
*Merwyn Finwick - Keeper for the Tutshill Tornados
*Sergeant Fisher – A Muggle police officer from the Harry Potter prequel.
*Nicolas Flamel – Husband of Perenelle Flamel, alchemist, the only known creator of the Philosopher's stone. A fictionalised version of Nicolas Flamel, the mediaeval scrivener and alchemist.
*Perenelle Flamel – Wife of Nicolas Flamel
*Angus Fleet – Muggle who spotted Arthur Weasley's flying Ford Anglia
*Mundungus Fletcher – Sneak thief and member of the Order of the Phoenix
*Laurentia Fletwock – Breeder and racer of winged horses, J. K. Rowling's Wizard of the Month for December 2006
*Marcus Flint – Slytherin Quidditch Chaser and Captain, five years above Harry.
*Keaton Flitney – English Quidditch Chaser
*Filius Flitwick – Charms professor at Hogwarts and Head of Ravenclaw
*Ambrosius Flume – Owner of Honeydukes Sweetshop in Hogsmeade
*Dexter Fortescue – Past Hogwarts Headmaster
*Florean Fortescue – Owner of an ice cream parlor in Diagon Alley, helped Harry Potter with his homework and gave him free ice cream. Victim of the Death Eaters
*Denison Frisby – English Quidditch Keeper
*Vicky Frobisher – Gryffindor student at the time Harry was at Hogwarts
*Basil Fronsac – Ravenclaw student, Hogwarts Headmaster
*Colonel Fubster – Friend of Marge Dursley
*Cornelius Oswald Fudge – Minister for Magic, uncle of Rufus Fudge
*Rufus Fudge – Cornelius Fudge's nephew
*Iñigo Fuente Marrero – Spanish Quidditch Seeker
*Dymphna Furmage – Witch who is terrified of pixies
===G===
*Carmen Garcia – Spanish Quidditch Chaser
*Marvolo Gaunt – Pure-blood father of Merope and Morfin Gaunt, grandfather of Tom Marvolo Riddle, descendant of Salazar Slytherin and Cadmus Peverell
*Merope Gaunt – Daughter of Marvolo Gaunt, sister of Morfin Gaunt, wife of Tom Riddle Sr, mother of Tom Marvolo Riddle/Lord Voldemort, died during childbirth, named for Merope, one of the Pleiades, who married a mortal
*Morfin Gaunt – Son of Marvolo Gaunt, brother of Merope Gaunt, uncle of Tom Marvolo Riddle
*Gibbon – Death Eater, killed at Hogwarts in Half-Blood Prince
*Godelot – Father of Hereward Godelot, owner of the Elder Wand
*Hereward Godelot – Son of Godelot, killed his father for possession of the Elder Wand
*Anthony Goldstein – Ravenclaw student in Harry's year, member of Dumbledore's Army
*Golgomath- The second Gurg visited by Rubeus Hagrid and Olympe Maxime on their quest in the book Harry Potter and the Order of the Phoenix. Golgomath was ruthless, blood-thirsty, and greedy.
*Dragomir Gorgovitch – Quidditch Chaser with the Chudley Cannons
*Miranda Goshawk – Author of the Standard Book of Spells series
*Goyle Sr – Death Eater, father of Gregory Goyle
*Gregory Goyle – Son of Goyle, Slytherin student in Harry's year, Slytherin Quidditch Beater, member of the Inquisitorial Squad, dies in Part 2 of the final movie by accidentally falling into fire
*Mr. Granger – Muggle dentist, father of Hermione Granger, grandfather of Hugo and Rose Weasley.
*Mrs. Granger – Muggle dentist, mother of Hermione Granger, grandmother of Hugo and Rose Weasley.
*Hermione Jean Granger – Muggle-born Gryffindor student in Harry's year, member of Dumbledore's Army, Gryffindor prefect, daughter of dentists Mr. Granger and Mrs. Granger
*Merton Graves – Cello player of the Weird Sisters.
*Robert Green – American Quidditch Chaser
*Astoria Greengrass – Younger sister of Daphne Greengrass, wife of Draco Malfoy and mother of Scorpius Hyperion Malfoy.
*Daphne Greengrass – Slytherin student in Harry's year
*Gregorovitch – European wand maker, killed by Lord Voldemort
*Fenrir Greyback – Werewolf, infected Remus Lupin, maimed Bill Weasley, killed Lavender Brown, defeated by Ron Weasley and Neville Longbottom
*Glynnis Griffiths – Quidditch Seeker with the Holyhead Harpies
*Wilda Griffiths – Chaser for Puddlemere United, former Chaser for Holyhead Harpies
*Elias Grimstone – Broommaker who created the Oakshaft 79. 
*Gellert Grindelwald – Dark Wizard, friend, and later rival, of Albus Dumbledore, nephew of Bathilda Bagshot, owner of the Elder Wand, student at Durmstrang, killed by Lord Voldemort
*Wilhelmina Grubbly-Plank – Substitute Care of Magical Creatures professor during Harry's fifth year
*Alberic Grunnion – Inventor of the Dungbomb
*Godric Gryffindor – Co-founder of Hogwarts, J. K. Rowling’s Wizard of the Month for July 2007
*Davey Gudgeon – Hogwarts student before Harry's time at school
*Galvin Gudgeon – Quidditch Seeker for the Chudley Cannons
*Gladys Gudgeon – Fan of Gilderoy Lockhart, writes weekly fan mail
*Elladora Guffy – Neighbour of Ethelbart Mordaunt
*Lorre Gustafson – Nordic Quidditch Chaser
===H===
*Rubeus Hagrid – Son of Hagrid and Fridwulfa, expelled Gryffindor student, Keeper of Keys and Grounds at Hogwarts, Care of Magical Creatures professor after Harry's third year, member of the Order of the Phoenix, half-giant, half brother of Grawp
*Hagrid Sr – Wizard father of Rubeus Hagrid
*Ciceron Harkiss – Student of Horace Slughorn, gave Ambrosius Flume his first job
*Harper – Slytherin Quidditch Chaser during Harry's time at school
*Warty Harris – Original owner of toads stolen by Mundungus Fletcher
*Kenneth Hastings – Australian Quidditch Chaser
*Avery Hawksworth – English Quidditch Chaser
*Ralph Heidelberger – Keeper for the American National Quidditch Team
*Martin "Tiny" Helstrom – Nordic Quidditch Keeper
*Bertie Higgs – Hunting partner of Tiberius McLaggen
*Terence Higgs – Slytherin Quidditch Seeker during Harry's first year
*Glover Hipworth – Inventor of the Pepperup Potion
*Bob Hitchens – Muggle or Muggle-born who married Isla Black (sister of Phineas Nigellus Black)
*Isla Hitchens (née Black) – Sister of Phineas Nigellus, Sirius and Elladora Black, disowned for marrying Muggle or Muggle-born Bob Hitchens
*Rolanda Hooch – Hogwarts flying instructor, Quidditch referee
*Geoffrey Hooper – Gryffindor student during Harry's time at Hogwarts
*Mafalda Hopkirk – Improper Use of Magic Office employee
*Hornby – Brother of Olive Hornby, wedding haunted by Moaning Myrtle
*Olive Hornby – Hogwarts student during the time of Tom Riddle, teased Moaning Myrtle
*Basil Horton – Quidditch player for the Falmouth Falcons, co-founded Comet Trading Company with Randolph Keitch, co-creator of the Horton-Keitch Braking Charm
*Helga Hufflepuff – Co-founder of Hogwarts, ancestor of Hepzibah Smith, J. K. Rowling's Wizard of the Month for May 2007
===I===
*Duncan Inglebee – Ravenclaw Quidditch Beater during Harry's time at school
*Clara Ivanova – Bulgarian Quidditch Chaser
*Tamotsu Iwamoto – Japanese Quidditch Keeper
===J===
*Joey Jenkins – Quidditch Beater with the Chudley Canons, featured in the book Flying With the Canons
*Leonard Jewkes – Creator of the Silver Arrow racing broom
*Arsenius Jigger – Author of Magical Drafts and Potions
*Angelina Johnson – Gryffindor student two years above Harry, Quidditch Chaser and captain, attended Yule Ball with Fred Weasley, wife of George Weasley and mother of Fred and Roxanne Weasley
*Gwenog Jones – Welsh witch, Hogwarts student before Harry's time, friend and disciple of Horace Slughorn, captain and beater for the Holyhead Harpies Quidditch team (an all-woman team), J. K. Rowling's Wizard of the Month for June 2004, heroine and role model for Ginny Weasley, who keeps a poster of Jones in her room
*Hestia Jones – Member of the Order of the Phoenix
*Jordan Sr – Father of Lee Jordan, owed money by Ludo Bagman
*Lee Jordan – Gryffindor student two years above Harry, Hogwarts Quidditch commentator, good friend of Fred and George Weasley at Hogwarts
*Bertha Jorkins – Hogwarts student before Harry's time, Ministry of Magic employee in the Department of Magical Games and Sports, killed by Voldemort
*Stamford Jorkins – Ministry of Magic spokesperson
*Jugson – Death Eater
===K===
*Igor Karkaroff – Reformed Death Eater, Highmaster of Durmstrang, presumably killed by Death Eaters after the events of Harry Potter and the Goblet of Fire
*Lucy "Lucky" Karoonda – Australian Quidditch Seeker
*Gertie Keddle – Author of one of the earliest accounts of Quidditch
*Roland Kegg – President of the English Gobstones team
*Randolph Keitch – Quidditch player with the Falmouth Falcons, with Basil Horton founded the Comet Trading Company and invented the Horton-Keitch Braking Charm
*Elladora Ketteridge – Discovered the use of gillyweed
*Silvanus Kettleburn – Care of Magical Creatures professor during Harry's first two years at Hogwarts
*Kevin- A wizard toddler who appears at the campsite of the Quidditch World Cup
*Aidan Kiely – Seeker for the Kenmare Kestrals Quidditch team
*Andrew Kirke – Gryffindor Quidditch Beater during Harry's fifth year at school
*Goodwin Kneen – Author of one of the earliest accounts of Quidditch, husband of Gunhilda Kneen
*Gunhilda Kneen – Wife of Goodwin Kneen, suffered from Dragon Pox
*Montague Knightley – Wizard Chess champion
*Asgeir Knutsen – Nordic Quidditch Beater
*Mr Krum – Father of Viktor Krum
*Mrs Krum – Mother of Viktor Krum
*Viktor Krum – Durmstrang student, Bulgarian Quidditch Seeker, participated in the Triwizard Tournament
===L===
*Lacroix – French Quidditch Beater
*Hildegarde Lafarge – French Quidditch Chaser
*Leandro Maia - Author of the Dwarf Types book series
*Fifi LaFolle – Author of the Enchanted Encounters book series, J. K. Rowling's Wizard of the Month for October 2005
*Lisette de Lapin – A French sorceress convicted of witchcraft in 1422 and possible animagus
*Nobby Leach – Minister for Magic
*Lestrange – Death Eater, attended Hogwarts with Tom Marvolo Riddle
*Bellatrix Lestrange (née Black) – Daughter of Cygnus Black III and Druella Rosier, Slytherin student before Harry's time, Death Eater, sister of Narcissa Malfoy and Andromeda Tonks, cousin of Sirius Orion and Regulus Arcturus Black, wife of Rodolphus Lestrange, tortured Frank and Alice Longbottom into insanity with husband Rodolphus, killed Sirius Black, Nymphadora Tonks, and Dobby. Killed by Molly Weasley.
*Rabastan Lestrange – Death Eater, brother of Rodolphus Lestrange
*Rodolphus Lestrange – Death Eater, brother of Rabastan Lestrange, husband of Bellatrix Lestrange, uncle of Nymphadora Lupin (née Tonks) and Draco Malfoy, tortured Frank and Alice Longbottom into insanity with wife Bellatrix
*Alexei Levski – Bulgarian Quidditch Chaser
*Limebert – Headmaster of Hogwarts sometime before Armando Dippet
*"Dangerous" Dai Llewellyn – Quidditch player for the Caerphilly Catapults, has a ward named after him in St Mungo's
*Ramon Llull - Magician who appears in the Chocolate Frog cards in Harry Potter and the Philosopher's Stone Majorcan writer, philosopher and logician. 
*Guthrie Lochrin – Early broomstick rider
*Gilderoy Lockhart – Author, Defense Against the Dark Arts teacher, lost memory because of a backfiring memory spell he attempted with Ron's broken wand on Harry and Ron, permanently resides at St. Mungo's
*Alice Longbottom – Wife of Frank Longbottom, mother of Neville Longbottom, member of the original Order of the Phoenix, Auror, tortured into insanity by Bellatrix Lestrange along with her husband
*Augusta Longbottom – Mother of Frank Longbottom and grandmother of Neville Longbottom
*Callidora Longbottom (née Black) – Daughter of Arcturus Black II and Lysandra Yaxley, sister of Charis and Cedrella Black, mother of one son and one daughter
*Frank Longbottom – Father of Neville Longbottom, son of Augusta Longbottom, husband of Alice Longbottom, member of the original Order of the Phoenix, Auror, tortured into insanity by Bellatrix Lestrange along with his wife.
*Harfang Longbottom – Husband of Callidora Black, father of one son and one daughter 
*Neville Longbottom – Gryffindor student in Harry's year, member of Dumbledore's Army, son of Aurors Frank and Alice Longbottom
*Luna Lovegood – Ravenclaw student one year below Harry, member of Dumbledore's Army, daughter of Xenophilius Lovegood and Mrs Lovegood, wife of Rolf Scamander, mother of Lorcan and Lysander Scamander
*Mrs Lovegood – Wife of Xenophilius Lovegood, mother of Luna Lovegood, grandmother of Lorcan and Lysander Scamander, died when Luna was nine years old
*Xenophilius Lovegood – Husband/widower of Mrs Lovegood, father of Luna Lovegood, grandfather of Lorcan and Lysander Scamander, editor of The Quibbler
*Artemisia Lufkin – First witch to become Minister for Magic, JKR's Wizard of the Month for February 2005
*Tina Lundstrom – Seeker and Captain of the Nordic National Quidditch team
*Remus John Lupin – Gryffindor student before Harry's time, Marauder, friend of James Potter, werewolf, Professor of Defence Against the Dark Arts in Harry's third year, member of the Order of the Phoenix, husband of Nymphadora Lupin (née Tonks) and father of Teddy Remus Lupin, killed in the Deathly Hallows by Antonin Dolohov
*Teddy Remus Lupin – Son of Remus Lupin and Nymphadora Lupin (née Tonks), metamorphmagus, godson of Harry Potter,
*Aidan Lynch – Irish Quidditch Seeker
*Scarlett Lympsham - Slytherin student during Harry's time at Hogwarts, known to be associated with Pansy Parkinson and Tracey Davis. also played informal Quidditch games with friends, including Tracey, Daphne Greengrass and Astoria Greengrass
===M===
*MacBoon clan – Wizarding family from the Isle of Drear, killed the rival McClivert clan after being transfigured into quintapeds
*Quintius MacBoon – Head of the MacBoon, Hogwarts student in Harry's fifth year
*Magnus "Dent-Head" Macdonald – Led effort to reintroduce the game of Creaothceann
*Mary Macdonald – Hogwarts student before Harry's time, attacked with Dark Magic by Mulciber
*Isobel MacDougal – Ravenclaw student in Harry's year
*Morag MacDougal – Hogwarts student sorted at the same time as Harry
*Hamish MacFarlan – Captain of the Montrose Magpies Quidditch team, Head of the Department of Magical Games and Sports
*MacFusty clan – A Wizarding family from the Hebrides Islands, they care for the Hebridean Black dragons
*Ernie Macmillan – Hufflepuff student in Harry's year, school prefect, member of Dumbledore's Army
*Walden Macnair – Death Eater, executioner for the Ministry of Magic
*Alasdair Maddock – Quidditch Chaser for the Montrose Magpies
*Laura Madley – Hufflepuff student three years below Harry
*Abraxas Malfoy – Grandfather of Draco Malfoy, father of Lucius Malfoy, died of Dragon Pox
*Brutus Malfoy – Ancestor of Lucius and editor of Warlock at War, an anti-Muggle periodical
*Draco Malfoy – Slytherin student in Harry's year, Slytherin Quidditch Seeker, school prefect, member of the Inquisitorial Squad, son of Lucius Malfoy and Narcissa Black, husband of Astoria Malfoy née Greengrass, father of Scorpius Malfoy, cousin of Nymphadora Lupin (née Tonks), reformed Death Eater.
*Lucius Malfoy – Son of Abraxas Malfoy and unnamed lady, husband of Narcissa Black, father of Draco Malfoy, grandfather of Scorpius Malfoy, uncle of Nymphadora Lupin (née Tonks), wealthy reformed Death Eater and an ex-governor of Hogwarts
*Narcissa Malfoy (née Black) – Daughter of Cygnus Black III and Druella Rosier, wife of Lucius Malfoy, mother of Draco Malfoy, grandmother of Scorpius Malfoy, sister of Bellatrix Lestrange and Andromeda Tonks, cousin of Sirius Orion and Regulus Arcturus Black, aunt of Nymphadora Lupin (née Tonks)
*Scorpius Hyperion Malfoy – Son of Draco Malfoy and Astoria Greengrass, grandson of Lucius Malfoy and Narcissa Black, second cousin of Teddy Remus Lupin
*Malécrit – Playwright who wrote Hélas, Je me suis Transfiguré mes Pieds. The name means "badly written" and the title of the work means, "Alas, I have transfigured my feet."
*Madam Malkin – Owner of Madam Malkin's Robes for All Occasions in Diagon Alley
*Mathilde Mallard – French Quidditch Chaser
*Josephine Marat – French Quidditch Chaser
*Griselda Marchbanks – Head of the Wizarding Examinations Authority, elder of the Wizengamot
*Beaumont Marjoribanks – Pioneering herbologist, sometimes falsely credited with discovering gillyweed (Elladora Ketteridge discovered it about a century earlier)
*Madam Marsh – Elderly passenger on the Knight Bus
*Mr Mason – Muggle dinner guest of the Dursleys
*Mrs Mason – Muggle dinner guest of the Dursleys
*Olympe Maxime – Half-giantess, Headmistress of Beauxbatons
*Dougal McBride – Seeker for the Pride of Portree Quidditch team
*McClivert clan – Wizarding family from the Isle of Drear, killed by the rival MacBoon clan
*Dugald McClivert – Head of the McClivert clan
*Catriona McCormack – Mother of Kirley Duke and Meaghan McCormack, Scottish Quidditch Chaser, Chaser and Captain of the Pride of Portree Quidditch team
*Meaghan McCormack – Daughter of Catriona McCormack, sister of Kirley Duke McCormack, Quidditch Keeper for Puddlemere United
*Natalie McDonald – Gryffindor student three years below Harry; Natalie McDonald was a nine-year old Harry Potter fan who died of leukemia shortly after writing a fan letter to Rowling. Rowling created the character to honour McDonald, who is the only real person to appear in the series, apart from Nicolas Flamel
*Isobel McGonagall (née Ross) – Daughter of Mr and Mrs Ross, wife of Robert McGonagall Sr, mother of Minerva, Robert Jr and Malcolm McGonagall
*M. G. McGonagall – Gryffindor student in the early 70s (name seen on a shield on a commemorative plaque in the first film; not mentioned in the books)
*Malcolm McGonagall – Son of Revrend Robert McGonagall Sr and Isobel Ross, brother of Minerva and Malcolm
*Minerva McGonagall – Daughter of Reverend Robert McGonagall Sr. and Isobel Ross, sister of Malcolm and Robert McGonagall Jr., brief fiancée of Dougal McGregor, widow of Elphinstone Urquart, Hogwarts Transfiguration professor, Head of Gryffindor House, Headmistress, Deputy Headmistress under Albus Dumbledore, member of the Order of the Phoenix, Animagus, Ministry of Magic employee in the Department of Magical Law Enforcement, member of Gryffindor Quidditch team
*Robert McGonagall Jr. – Son of Reverend Robert McGonagall Sr. and Isobel Ross, brother of Minerva and Malcolm McGonagall, father of at least one child
*Robert McGonagall Sr. – Muggle husband of Isobel Ross, father of Minerva, Robert Jr and Malcolm McGonagall
*Dougal McGregor – Muggle farmer, brief fiancée of Minerva McGonagall
*Jim McGuffin – Muggle weatherman
*Marlene McKinnon – Member of the original Order of the Phoenix
*Cormac McLaggen – Gryffindor Quidditch Keeper for one game in Half-Blood Prince
*Mr McLaggen – Father of Cormac McLaggen
*Tarquin McTavish – J. K. Rowling's Wizard of the Month for July 2006, imprisoned for crimes against Muggles
*Dorcas Meadowes – Member of the original Order of the Phoenix
*Kylie Meadows – Australian Quidditch Beater
*Araminta Meliflua – Cousin of Sirius Black's mother, attempted to legalise Muggle-hunting
*Galatea Merrythought – Defence Against the Dark Arts professor at Hogwarts before Harry's time at school
*Merlin – Mentioned as being on an enchanted 'Chocolate Frog' card
*Eloise Midgen – Hogwarts student during Harry's time at school, has an acne problem
*Cuthbert Mockridge – Head of the Goblin Liaison Office
*Laverne de Montmorency – Creator of various love potions, Ravenclaw student in the 1830s
*Graham Montague – Slytherin Quidditch Chaser and captain, two years ahead of Harry
*Montgomery sisters – Hogwarts students at the time Harry is at school, their brother is attacked by Fenrir Greyback and dies at St Mungo's
*Maria Monteith – Australian Quidditch Chaser
*Tiago Montoya – Spanish Quidditch Beater
*Alastor "Mad-Eye" Moody – Retired Auror, member of the Order of the Phoenix, Defence Against the Dark Arts professor in Goblet of Fire (though he was impersonated by Barty Crouch Jr), killed by Lord Voldemort in the Battle of the Seven Potters
*Lily Moon – Hogwarts student in Harry's year
*Moran – Irish Quidditch Chaser
*Ethelbard Mordaunt – Neighbour of Elladora Guffy
*Gwendolyn Morgan – Captain of the Holyhead Harpies Quidditch team
*Valmai Morgan – Quidditch Chaser for the Holyhead Harpies
*Mortlake – Ferret owner, raided by the Muggle Artefacts Office in Chamber of Secrets
*Hassan Mostafa – Chairwizard of the International Association of Quidditch, refereed the Quidditch World Cup final between Bulgaria and Ireland
*Mulciber – One of the first Death Eaters, Imperius Curse specialist, Slytherin student during Tom Riddle's time at Hogwarts in the 1970s
*Burdock Muldoon – Chief of the Wizards' Council, set the criteria for what defines a "being"
*Mullet – Irish Quidditch Chaser
*Zacharias Mumps – Wrote an early account of Quidditch
*Eric Munch – Watchwizard at the Ministry of Magic, arrests Sturgis Podmore
*Debbie Muntz – American Quidditch Chaser
*Eunice Murray – Quidditch Seeker for the Montrose Magpies
===N===
*Z. Nettles – Witch who gives a testimonial on Kwikspell
*Nott Sr – Widower Death Eater, father of Theodore Nott
*Theodore Nott – Slytherin student in Harry's year, son of Death Eater Nott
*Jonny Nuhaka – Australian Quidditch Keeper
*Honoria Nutcombe – Founded the Society for the Reformation of Hags, J. K. Rowling's Wizard of the Month for August 2004
===O===
*Idris Oakby – Founder of the Society for the Support of Squibs, J. K. Rowling's Wizard of the Month for October 2006
*Winkus Oddpick – Wrote an editorial for the Daily Prophet after the Chipping Clodbury Riot
*Bob Ogden – Ministry of Magic official in the Department of Magical Law Enforcement, came to the Gaunt house and arrested Marvolo and his son, Morfin
*Tiberius Ogden – Wizengamot elder, resigns after Dolores Umbridge is appointed Hogwarts High Inquisitor by Cornelius Fudge
*Dunbar Oglethorpe – Chief of Quidditch Union for the Administration and Betterment of the British League and its Endeavours (Q.U.A.B.B.L.E.)
*Darren O'Hare – Quidditch Keeper for the Kenmare Kestrals, captain of the Irish National Team, inventor of the Hawkshead Attacking Formation
*Gondoline Oliphant – Studied trolls, killed by trolls. J. K. Rowling's Wizard of the Month for April 2005
*Barnaby Ollerton – Co-founder of the Cleansweep Broom Company with his brothers Bill and Bob
*Bill Ollerton – Co-founder of the Cleansweep Broom Company with his brothers Barnaby and Bob
*Bob Ollerton – Co-founder of the Cleansweep Broom Company with his brothers Barnaby and Bill
*Gifford Ollerton – Giant slayer, killed giant Hengist of Upper Barnton
*Garrick Ollivander – Son of Gervaise Ollivander, father of one son and one daughter, Ravenclaw student in the 1920s or 1930s, wandmaker, owner of Ollivanders, he is taken away by the Death Eaters, but is broken out of his cell by Dobby and Harry Potter.
*Geraint Ollivander - Medieval wandmaker, ancestor of Garrick Ollivander
*Gerbold Octavius Ollivander - Father of Gervaise Ollivander, grandfather of Garrick Ollivander, wandmaker
*Gervaise Ollivander - Son of Gerbold Ollivander, father of Garrick Ollivander, wandmaker
===P===
*Grant Page – Ravenclaw Quidditch Keeper during Harry's time at Hogwarts
*Blythe Parkin – English Quidditch Seeker
*Walter Parkin – Wizard whose four sons and three daughters comprised the original Wigtown Wanderers Quidditch team
*Pansy Parkinson – Slytherin student in Harry's year, school prefect, member of the Inquisitorial Squad, Draco Malfoy's girlfriend for some time
*Padma Patil – Ravenclaw student in Harry's year, identical twin sister of Gryffindor student Parvati Patil, member of Dumbledore's Army, attends the Yule Ball with Ron Weasley
*Parvati Patil – Gryffindor student in Harry's year, identical twin sister of Ravenclaw student Padma Patil, member of Dumbledore's Army, attends the Yule Ball with Harry Potter
*Mr Payne – Muggle campground manager at the Quidditch World Cup
*Glanmore Peakes – Slayer of the Sea Serpent of Cromer
*Jimmy Peakes – Gryffindor Quidditch Beater three years below Harry
*Abraham Peasegood – American wizard who invented the game Quodpot
*Arnold Peasegood – Ministry of Magic employee, Obliviator for the Accidental Magic Reversal Squad, trained hit-wizard
*Cybèle Peltier – French Quidditch Seeker
*Daisy Pennifold – Created a special Quaffle called the Pennifold Quaffle
*Professor Phoebus Penrose – Heads a committee for the Ministry of Magic that produces a report entitled A Study into Muggle Suspicions About Magic
*Octavius Pepper – Reported missing by the Daily Prophet
*Perkins – Ministry of Magic employee and friend of Arthur Weasley
*Sally-Anne Perks – Hogwarts student in Harry's year
*Asgard Pettersson – Nordic Quidditch Beater
*Mrs Pettigrew – Mother of Peter Pettigrew, awarded the Order of Merlin
*Peter Pettigrew – Gryffindor student before Harry's time, Marauder, Animagus, Death Eater, traitor to the Order of the Phoenix, disguised himself as a pet rat belonging to first Percy and later Ron Weasley
*Antioch Peverell – Original owner of the Elder Wand, brother of Cadmus and Ignotus Peverell, uncle of Ignotus's son, killed in his sleep
*Cadmus Peverell – Original owner of the Resurrection Stone, brother of Antioch and Ignotus Peverell, uncle of Ignotus's son, ancestor of the Gaunt family and Lord Voldemort, killed himself
*Ignotus Peverell – Original owner of the Cloak of Invisibility, brother of Antioch and Cadmus Peverell, father of one son, ancestor of the Potter family
*Arkie Philpott – Searched with a Probity Probe at Gringotts in Half-Blood Prince
*Justus Pilliwickle – Head of the Department of Magical Law Enforcement
*Irma Pince – Hogwarts librarian
*Carlotta Pinkstone – Proponent of lifting the Statute of Secrecy, J. K. Rowling's Wizard of the Month for November 2005
*Dagbert Pips – Proprietor of Pumpkins R Us
*Radolphus Pittiman – Biographer of Uric the Oddball
*Yardley Platt – Serial goblin-killer, J. K. Rowling's Wizard of the Month for February 2006
*Roderick Plumpton – Quidditch Seeker for the England National Team and the Tutshill Tornados, originator of the Plumpton Pass, and holder of the fastest recorded catch of the Golden Snitch (three-and-a-half seconds, in 1921)
*Josiah Plunkett - Quidditch referee
*Mirabella Plunkett – Fell in love with a merman, transfigured herself into a haddock
*Sturgis Podmore – Member of the Order of the Phoenix, imprisoned in Azkaban
*Royden Poke – Official from the Department for the Regulation and Control of Magical Creatures, involved in the Chipping Clodbury Riot
*Gulliver Pokeby – Author of Why I Didn't Die When the Augurey Cried, expert on magical birds
*Poliakoff – Durmstrang student at the same time as Viktor Krum, travelled to Hogwarts for the Triwizard Tournament
*Mrs Polkiss – Mother of Piers Polkiss
*Piers Polkiss – Friend of Dudley Dursley
*Poppy Pomfrey – Hogwarts school nurse
*Roddy Pontner – Placed a bet with Ludo Bagman at the Quidditch World Cup
*Petrova Porskoff – Quidditch Chaser from Russia, creator of the Porskoff Ploy
*Albus Severus Potter – Son of Harry Potter and Ginny Weasley, brother of James Sirius Potter and Lily Luna Potter, grandson of James Potter, Lily Evans, Arthur Weasley, and Molly Weasley
*Charlus Potter – Husband of Dorea Black, possible father of James Potter, possible father-in-law of Lily Evans, possible grandfather of Harry Potter
*Dorea Potter (née Black) - Daughter of Cygnus Black I and Violetta Bulstrode, wife of Charlus Potter, possible mother of James Potter, possible mother-in-law of Lily Evans, possible grandmother of Harry Potter
*Harry James Potter – Main character of the series. Son of James Potter and Lily Evans.
*James Potter – Possible son of Charlus Potter and Dorea Black, husband of Lily Evans, father of Harry Potter, Gryffindor student, Marauder, Animagus, Quidditch Seeker and Captain, member of the Order of the Phoenix, killed by Lord Voldemort
*James Sirius Potter – Son of Harry Potter and Ginny Weasley, brother of Albus Severus and Lily Luna Potter, grandson of James Potter, Lily Evans, Arthur Weasley and Molly Weasley, Gryffindor student
*Lily Potter (née Evans) – Muggle-born wife of James Potter, sister of Petunia Evans, mother of Harry Potter, grandmother of James Sirius, Albus Severus and Lily Luna Potter, Gryffindor student, Head Girl, member of the Order of the Phoenix, killed by Lord Voldemort
*Lily Luna Potter – Daughter of Harry Potter and Ginny Weasley, sister of Albus Severus and James Sirius Potter,
*Nugent Potts – Quidditch referee
*Ernie Prang – Driver of the Knight Bus
*Mr Prentice – Muggle neighbour of the Dursleys
*Fabian Prewett – Son of Mr and Mrs Prewett, brother of Molly Weasley and Gideon Prewett, brother in-law of Arthur Weasley, uncle of Charlie, Bill, Percy, George, Fred, Ron, and Ginny Weasley, member of the original Order of the Phoenix, killed by Death Eaters
*Gideon Prewett – Brother of Molly Weasley and Fabian Prewett, member of the original Order of the Phoenix, killed by Death Eaters, brother in-law of Arthur Weasley, uncle of Charlie, Bill, Percy, George, Fred, Ron, and Ginny Weasley
*Ignatius Prewett – Husband of Lucretia Black, uncle of Gideon and Fabian Prewett and Molly Weasley and Sirius Orion and Regulus Arcturus Black
*Lucretia Prewett (née Black) – Daughter of Arcturus Black III and Melania MacMillan, sister of Orion Black, wife of Ignatius Prewett, aunt of Gideon and Fabian Prewett and Molly Weasley and Sirius and Regulus Arcturus Black
*Molly Prewett – See Molly Weasley
*Apollyon Pringle – Caretaker at Hogwarts before Argus Filch
*Graham Pritchard – Slytherin student three years under Harry
*D.J. Prod - Gave a testimonial on Kwikspell
*Demetrius J. Prod – Wizard who died after an argument with his wife over the washing-up
*Elsie Prod – Widow of Demetrius Prod
*Bertrand de Pensées-Profondes – A Wizarding philosopher who wrote A Study into the Possibility of Reversing the Actual and Metaphysical Effects of Natural Death, with Particular Regard to the Reintegration of Essence and Matter
*Proudfoot – Auror
*Adrian Pucey – Slytherin Quidditch Chaser two years above Harry
*Madam Puddifoot – Owner of a tea shop in Hogsmeade
*Doris Purkiss – Claimed in The Quibbler that Sirius Black and Stubby Boardman were the same person
*Augustus Pye – Trainee Healer at St Mungo's, treated Arthur Weasley in Order of the Phoenix
===Q===
*Quigley – Irish Quidditch Beater
*Finbar Quigley – Quidditch player (possibly Beater) for the Ballycastle Bats
*Hambledon Quince – Claims that wizards are from Mars, Muggles are from Mushrooms, J. K. Rowling's Wizard of the Month for September 2006
*Orla Quirke – Ravenclaw student three years below Harry
*Quirinus Quirrell – Ravenclaw student in the 1960s or 70s, Muggle Studies and Defence Against the Dark Arts professor, possessed by Lord Voldemort in Philosopher's Stone
*Quong Po – Chinese dragonologist, studied the Chinese Fireball breed and discovered the used of their powdered eggs
===R===
*Modesty Rabnott – Protested the use of the Golden Snidget in Quidditch, namesake of the Modesty Rabnott Golden Snidget Preserve
*Urquhart Rackharrow – Inventor of the Entrail-expelling Curse, his portrait hangs in St Mungo's
*Mnemone Radford – Developed Memory Modifying Charms, first Obliviator, J. K. Rowling's Wizard of the Month for February 2007
*Xavier Rastrick – Wizard entertainer, vanished during a performance and was never seen again
*Helena Ravenclaw/The Grey Lady – Daughter of Rowena Ravenclaw, Ravenclaw House ghost, stole her mother's diadem and hid it in the Room of Requirement, killed by the Bloody Baron
*Rowena Ravenclaw – Co-founder of Hogwarts, mother of Helena Ravenclaw
*Mary Riddle – Muggle wife of Thomas Riddle, mother of Tom Riddle Sr, mother-in-law of Merope Gaunt, grandmother of Tom Marvolo Riddle/Lord Voldemort, killed by her grandson
*Thomas Riddle – Muggle husband of Mary Riddle, father of Tom Riddle Sr, father-in-law of Merope Gaunt, grandfather of Tom Marvolo Riddle/Lord Voldemort, killed by his grandson
*Tom Riddle Sr – Muggle husband of Merope Gaunt, son of Thomas and Mary Riddle, father of Tom Marvolo Riddle/Lord Voldemort, killed by his son
*Tom Marvolo Riddle: see Lord Voldemort
*Harvey Ridgebit – Dragonologist, first wizard to catch a Peruvian Vipertooth, established world's largest dragon sanctuary in Romania, J. K. Rowling's Wizard of the Month for January 2007
*Gawain Robards – Head of the Auror Office after Rufus Scrimgeour
*Mr Roberts – Muggle campground manager at the Quidditch World Cup, he and his family are tortured by Death Eaters
*Demelza Robins – Gryffindor Quidditch Chaser during Harry's sixth at Hogwarts
*Augustus Rookwood – Death Eater, spy working in the Department of Mysteries
*Rosier – Early Death Eater
*Evan Rosier – Slytherin student, friend of Severus Snape while at Hogwarts, killed by Aurors
*Madam Rosmerta – Proprietor of the Three Broomsticks in Hogsmeade
*Thorfinn Rowle – Death Eater
*Greg Ruczinski – American Quidditch Beater
*Grugwyn Rufford – Member of the Welsh National Gobstones Team
*Albert Runcorn – Worker for the Ministry of Magic
*Barry Ryan – Irish Quidditch Keeper
===S===
*Eoessa Sakndenberg – Former Headmistress of Hogwarts
*Vasco Santini – Spanish Quidditch Beater
*Noriyuki Satō – Japanese Quidditch Chaser
*Saucet – French Quidditch Beater
*Almerick Sawbridge – Conquered a river troll at the Wye River
*Scabior – Snatcher who captures Harry Potter, Ron Weasley and Hermione Granger in Deathly Hallows, Slytherin student at Hogwarts
*Newton Artemis Fido "Newt" Scamander – Author of Fantastic Beasts and Where to Find Them, among other books, grandfather of Rolf Scamander, Hufflepuff student at Hogwarts, Headmaster of Hogwarts
*Mr Scamander – Husband of Mrs Scamander, father of Rolf Scamander, grandfather of Lorcan and Lysander Scamander
*Mrs Scamander – Wife of Mr Scamander, mother of Rolf Scamander, grandmother of Lorcan and Lysander Scamander
*Rolf Scamander – Wizarding naturalist, husband of Luna Lovegood, father of Lorcan and Lysander Scamander
*Porpentina Scamander – Wife of Newt Scamander, grandmother of Rolf Scamander
*Bruno Schmidt – Child from Germany who kills an Erkling with a collapsible cauldron
*Brutus Scrimgeour – Author of The Beater's Bible
*Rufus Scrimgeour – Head of the Auror Office, replaces Cornelius Fudge as Minister for Magic, killed, presumably by Death Eaters, in The Deathly Hallows
*Selwyn – Death Eater
*Kingsley Shacklebolt – Auror, replaces Pius Thicknesse as Minister for Magic, member of the Order of the Phoenix
*Derwent Shimpling – Comedian, ate an entire Venomous Tentacula and survived, J. K. Rowling's Wizard of the Month for January 2005
*Gaspard Shingleton – Inventor of the Self-Stirring Cauldron, J. K. Rowling's Wizard of the Month for September 2005
*Stanley "Stan" Shunpike – Conductor of the Knight Bus, Death Eater (possibly under Imperius Curse)
*Ariel "Speedy" Singleton – American Quidditch Seeker
*Aurora Sinistra – Professor of Astronomy at Hogwarts
*Rita Skeeter – Reporter for the Daily Prophet, author of The Life and Lies of Albus Dumbledore, Animagus
*Harold Skively – Suggested a holiday in honour of Merlin
*Wilbert Slinkhard – Author of Defensive Magical Theory
*Jack Sloper – Gryffindor Quidditch Beater during Harry's fifth year at school
*Horace Slughorn – Former Potions professor at Hogwarts and Head of Slytherin House, taught Tom Marvolo Riddle, fights against the Death Eaters
*Salazar Slytherin – Co-founder of Hogwarts, Parselmouth, ancestor of the Gaunt family and Lord Voldemort, J. K. Rowling's Wizard of the Month for June 2007
*Veronica Smethley – Fan of Gilderoy Lockhart
*Elliot Smethwyk – Created the Cushioning Charm
*Hippocrates Smethwyck – Healer-in-Charge on the Dai Llewellyn Ward at St Mungo's
*Leopoldina Smethwyk – First British witch to referee a Quidditch match
*Hepzibah Smith – Elderly, wealthy antique collector, descendant of Helga Hufflepuff, murdered and robbed by Tom Marvolo Riddle
*Zacharias Smith – Hufflepuff student during Harry's time at Hogwarts, Chaser on the Hufflepuff Quidditch team, member of Dumbledore's Army
*Eileen Snape (née Prince) – Pure-blood wife of Tobias Snape, mother of Severus Snape, captain of the Hogwarts Gobstones Club
*Severus Snape – Son of Tobias Snape and Eileen Prince, "Half-Blood Prince", reformed Death Eater, member of the Order of the Phoenix, Potions and Defence Against the Dark Arts professor, Head of Slytherin House, Hogwarts Headmaster, killed Dumbledore in the sixth book, killed in the seventh book by Nagini
*Tobias Snape – Muggle husband of Eileen Prince, father of Severus Snape
*Faris "Spout Hole" Spavin – Minister for Magic
*Alicia Spinnet – Gryffindor Quidditch Chaser, two years above Harry
*Phyllida Spore – Author of One Thousand Magical Herbs and Fungi and former Headmistress of Hogwarts
*Pomona Sprout – Hogwarts Herbology professor, Head of Hufflepuff House
*Spudmore – Manufacturer of the 1940 Timberblast broom
*Erica Stainwright – Disgraced housekeeping guru, Wizard of the Month for August 2006
*Blenheim Stalk – Author of Muggles Who Notice, Muggle expert
*Hesper Starkey – Studied how the phases of the moon affect potion-making
*Stebbins - Hogwarts student during the Marauders' time at Hogwarts
*Stebbins – Hufflepuff student during Harry's time at Hogwarts, caught by Snape with Fawcett during the Yule Ball
*Patricia Stimpson – Hogwarts student two years above Harry
*Jeremy Stretton – Ravenclaw Quidditch Chaser during Harry's time at Hogwarts
*Edgar Stroulger – Inventor of the Sneakoscope
*Miriam Strout – Healer in the Janus Thickey Ward at St Mungo's
*Billy Stubbs – Boy at Tom Marvolo Riddle's orphanage
*Grogan Stump –, Hufflepuff student in the 1780s, Minister for Magic, J. K. Rowling's Wizard of the Month for April 2006
*Felix Summerbee – Inventor of Cheering Charms, J. K. Rowling's Wizard of the Month for May 2004 and May 2005
*Summerby – Hufflepuff Quidditch Seeker after Cedric Diggory
*Summers – Hufflepuff student during Harry's time at Hogwarts
*Yoshihiro Suzuki – Japanese Quidditch Chaser
*Havelock Sweeting – Unicorn expert
*Emeric Switch – Author of A Beginner's Guide to Transfiguration
*Ambrose Swott – Former Headmaster of Hogwarts
*Jocunda Sykes – First person to fly a broomstick across the Atlantic, J. K. Rowling's Wizard of the Month for January 2006
===T===
*Lucinda Talkalot – Slytherin student in the 1970s, Captain of the Slytherin Quidditch team
*Ryotara Tanaka – Chaser and Captain of the Japanese National Quidditch Team
*Keiko Takahashi – Japanese Quidditch Beater
*Minaka Takahashi – Japanese Quidditch Beater
*Janus Thickey – Namesake of the Janus Thickey Ward at St Mungo's
*Pius Thicknesse – Minister for Magic while under the Imperius Curse, later replaced by Kingsley Shacklebolt in the book, killed by Lord Voldemort in Part 2 of the final movie 
*Dean Thomas – Gryffindor student in Harry's year, member of Dumbledore's Army, briefly Ginny Weasley's boyfriend, Gryffindor Quidditch Chaser.
*Mr Thomas – Father of Dean Thomas, murdered by Death Eaters, never told his Muggle wife that he was a wizard
*Mrs Thomas – Muggle mother of Dean Thomas and his Muggle half-siblings, murdered by Death Eaters, never knew her first husband was a wizard
*Lucinda Thomsonicle-Pocus – Chief Attendant of Witchcraft Provisions at Hogwarts
*Orsino Thruston – Drummer for the Weird Sisters
*Thaddeus Thurkell – Wizard who produced seven Squib sons and turned them all into hedgehogs in disgust.
*Agatha Timms – Owner of an eel farm, placed a bet with Ludo Bagman at the Quidditch World Cup
*Kurt Todt – German Quidditch Chaser
*Professor Tofty – Member of the Wizarding Examinations Authority
*Tilly Toke – Received the Order of Merlin First Class following the Ilfracombe Dragon Attack of 1932
*Andromeda Tonks (née Black) – Daughter of Cygnus Black III and Druella Rosier, disowned for marrying Muggle-born Ted Tonks, sister of Bellatrix Lestrange and Narcissa Malfoy, mother of Nymphadora Lupin (née Tonks), grandmother of Teddy Remus Lupin, cousin of Sirius Orion and Regulus Arcturus Black, aunt of Draco Malfoy
*Nymphadora Tonks - Daughter of Ted Tonks and Andromeda Black, disowned by the Black family for being half-blood, Auror, metamorphmagus, wife of Remus Lupin, mother of Teddy Remus Lupin, cousin of Draco Malfoy, killed by her aunt Bellatrix during the Battle of Hogwarts
*Ted Tonks – Muggle-born husband of Andromeda Black, father of Nymphadora Lupin (née Tonks), grandfather of Teddy Remus Lupin, uncle of Draco Malfoy, killed by Death Eaters
*Alberta Toothill – Wizarding duellist, won the All-England competition in 1430 with a Blasting Charm, defeating the favoured Samson Wiblin
*Daisy Toots (née Hookum) – Author of My Life as a Muggle, wife of Tilden Toots, J. K. Rowling's Wizard of the Month for June 2006
*Tilden Toots – Wizarding radio personality, husband of Daisy Hookum, J. K. Rowling's Wizard of the Month for March 2007
*Kenneth Towler – Gryffindor student two years above Harry
*Travers – Death Eater who killed the McKinnon family
*Cassandra Trelawney – Great-great-grandmother of Sybill Trelawney
*Sybill Patricia Trelawney – Great-great granddaughter of Cassandra Trelawney, Hogwarts Divination professor, made the prophecy that prompted Lord Voldemort to go after the Potters
*Donaghan Tremlett – Muggle-born bassist for the Weird Sisters, J. K. Rowling's Wizard of the Month for July 2004
*Quentin Trimble – Author of The Dark Forces: A Guide to Self Protection
*Quintin Trimble – Headmaster of Hogwarts
*Troy – Irish Quidditch Chaser
*Sacharissa Tugwood – Inventor of Beautifying Potions, discovered uses of Bubotuber Pus
*Lisa Turpin – Ravenclaw student in Harry's year
*Mallory Twiddle – Complained about Gringotts using Sphinxes as guards in the Daily Prophet
*Norvel Twonk – Died saving a Muggle child from a manticore
*Wilkie Twycross – Apparition instructor from the Ministry of Magic
===U===
*Dolores Jane Umbridge – Senior Undersecretary to the Minister for Magic, Defence Against the Dark Arts professor, Hogwarts High Inquisitor, Headmistress of Hogwarts, eventually sent to Azkaban for crimes against Muggle-borns, claims relation to the pure-blood Selwyn family
*Quintius Umfraville – Author of The Noble Sport of Warlocks
*Urquhart – Slytherin Quidditch captain during Harry's time at Hogwarts
*Elphinstone Urquart - Husband of Minerva McGonagall, Ministry of Magic employee in the Department of Magical Law Enforcement, killed by Venomous Tentacula bite
===V===
*Cassandra Vablatsky – Seer and author of Unfogging the Future
*Vaisey – Slytherin Quidditch Chaser
*Emmeline Vance – Member of the Order of the Phoenix, murdered by Death Eaters
*Romilda Vane – Gryffindor student two years below Harry
*Septima Vector – Arithmancy professor at Hogwarts
*Vindictus Veridian – Former Headmaster of Hogwarts and possibly former Potions professor at Hogwarts
*Vindictus Viridian – Author of Curses and Counter-curses (Bewitch Your Friends and Befuddle Your Enemies with the Latest Revenges: Hair Loss, Jelly-Legs, Tongue-Tying and Much, Much More)
*Lord Voldemort – The main villain of the series, murderer of Harry Potter's parents and many others. 
*Ivan Volkov – Bulgarian Quidditch Beater
*Katrina von Glockenspieler – German Quidditch Beater
*Edric Vosper – English Quidditch Chaser
*Pyotr Vulchanov – Bulgarian Quidditch Beater
*Vulpus – Former Headmaster of Hogwarts
===W===
*Jocelind Wadcock – Quidditch Chaser for Puddlemere United
*Adalbert Waffling – Magical theoretician and author Magical Theory
*Shizuka Watanabe – Japanese Quidditch Seeker
*Fabius Watkins – Chaser and Captain of the Montrose Magpies, died in 1975 after a freak collision with a helicopter
*"Honest" Willy Wagstaff – Street peddler accused of selling defective merchandise in Diagon Alley
*Myron Wagtail – Lead singer of the Weird Sisters
*Celestina Warbeck – Singer on the Wizarding Wireless Network
*C. Warrington – Chaser for the Slytherin Quidditch team
*Arthur Weasley – Ministry of Magic employee at the Misuse of Muggle Artifacts Office, son of Septimus Weasley and Cedrella Black, brother of 2 unnamed men, husband of Molly Weasley, father of Bill, Charlie, Percy, Fred, George, Ron, and Ginny Weasley, member of the Order of the Phoenix
*William Arthur "Bill" Weasley – Oldest son of Arthur Weasley and Molly Prewett, husband of Fleur Delacour, father of Victoire, Dominique and Louis Weasley
*Cedrella Weasley (née Black) – Daughter of Arcturus Black II and Lysandra Yaxley, sister of Callidora and Charis Black, mother of 3 sons including Arthur Weasley, disowned for marrying Septimus Weasley
*Charlie Weasley – Second son of Arthur Weasley and Molly Prewett, brother of Bill, Percy, Fred, George, Ron and Ginny Weasley, Gryffindor Quidditch Seeker and school prefect, member of the Order of the Phoenix, works with dragons in Romania
*Dominique Weasley – Daughter of Bill Weasley and Fleur Delacour, sister of Victoire and Louis
*Percy Weasley - Third son of Arthur Weasley and Molly Prewett, Hogwarts prefect and Head Boy like his brother, worked for Minister for Magic Cornelius Fudge then joined the Order of the Phoenix, later working for the Minister for Magic Kingsley Shacklebolt
*Fred Weasley – Son of Arthur Weasley and Molly Prewett, brother of Bill, Charlie, Percy, Ron and Ginny Weasley, identical twin brother of George Weasley, attended the Yule Ball with Angelina Johnson, member of Dumbledore's Army,Gryffindor Quidditch Beater, co-owner of Weasleys' Wizard Wheezes, killed during the battle of Hogwarts
*Fred Weasley II - Son of George Weasley and Angelina Johnson, brother of Roxanne Weasley, named after his deceased uncle, Fred Weasley.
*George Weasley – second youngest Son of Arthur Weasley and Molly Prewett, brother of Bill, Charlie, Percy, Ron and Ginny Weasley identical twin brother of Fred Weasley, Gryffindor Quidditch Beater, co-owner of Weasleys' Wizard Wheezes
*Ginevra Molly "Ginny" Weasley – Only daughter and youngest child of Arthur Weasley and Molly Prewett, Gryffindor student one year under Harry, Gryffindor Quidditch Seeker and Chaser, member of Dumbledore's Army, Quidditch player for the Holyhead Harpies.
*Hugo Weasley – Son of Ron Weasley and Hermione Granger
*Louis Weasley – Son of Bill Weasley and Fleur Delacour
*Molly Weasley I (née Prewett) – Sister of Fabian and Gideon Prewett, wife of Arthur Weasley, mother of Bill, Charlie, Percy, Fred, George, Ron and Ginny Weasley, member of the Order of the Phoenix
*Percy Ignatius Weasley – Son of Arthur Weasley and Molly Prewett, Gryffindor prefect and Head Boy, Ministry of Magic employee, fought against the Death Eaters in Deathly Hallows, 
*Ronald Bilius "Ron" Weasley – youngest Son of Arthur Weasley and Molly Prewett, husband of Hermione Granger, father of Hugo and Rose Weasley, Gryffindor Quidditch Keeper, school prefect, member of Dumbledore's Army.
*Rose Weasley – Daughter of Ron Weasley and Hermione Granger
*Roxanne Weasley – Daughter of George Weasley and Angelina Johnson
*Septimus Weasley – Husband of Cedrella Black, father of 3 sons including Arthur Weasley
*Victoire Weasley – Daughter of Bill Weasley and Fleur Delacour
*Konrad Weiss – German Quidditch Seeker
*Dorcas Wellbeloved – Founder of the Society for Distressed Witches
*Bridget Wenlock – Hufflepuff student in the 1210s, Arithmancer, established the magical properties of the number seven, J. K. Rowling's Wizard of the Month for August 2005
*Nigel Wolpert – Gryffindor student 3 years below Harry Potter in Harry Potter films directed by David Yates; not a character in the books
*Kelly Whakkaarangapawarau – Australian Quidditch Beater
*Kennilworthy Whisp – Author of Quidditch Through the Ages
*Kevin Whitby – Hufflepuff student three years under Harry
*Devlin Whitehorn – Founder of the Nimbus Racing Broom Company, revolutionised Quidditch, J. K. Rowling's Wizard of the Month for November 2004
*Samson Wiblin – Duellist, defeated at the All-England Duelling Competition in 1430 by Alberta Toothill
*Willy Widdershins – Set up regurgitating toilets in Order of the Phoenix, informs Dolores Umbridge of the meeting of Dumbledore's Army in the Hog's Head
*Hermann Wiel – German Quidditch Keeper
*Dempster Wiggleswade – Writer for the Daily Prophet
*Wilhelm Wigworthy – Author of Home Life and Social Habits of British Muggles
*Ignatia Wildsmith – Ravenclaw student from late 1230s to mid-1240s, inventor of Floo Powder, J. K. Rowling's Wizard of the Month for December 2004
*Wilkes – Slytherin student, friend of Severus Snape, Death Eater, killed by Aurors
*Benjy Williams – Quidditch Seeker for Puddlemere United
*Williamson – Auror
*Heliotrope Willis – Leader of the Troll Rights Movement
*Gilbert Wimple – Ministry official, Committee on Experimental Charms
*Herman Wintringham – Lute player for the Weird Sisters
*Lord Stoddard Withers – Magical creatures expert, breeder of flying horses
*Dawn Withey – English Quidditch Beater
*Mr Wood – Father of Oliver Wood
*Mrs Wood – Mother of Oliver Wood
*Oliver Wood – Hogwarts student, Gryffindor Quidditch Keeper and captain, Keeper for Puddlemere United.
*Augustus Worme – Editor at Obscurus Books who commissioned Newt Scamander to write an authoritative compendium of magical creatures
*Eldred Worple – Author of Blood Brothers: My Life Amongst the Vampires
*Bowman Wright – Creator of the Golden Snitch, J. K. Rowling's Wizard of the Month for December 2005
*Jósef (or Józef) Wroński – Polish Quidditch Seeker for the Grodzisk Goblins, inventor of the Wronski Feint
===Y===
*Yaxley – Death Eater, defeated by George Weasley and Lee Jordan
*Dzou Yen – Chinese alchemist 
*Cyprian Youdle – Quidditch referee who was killed during a match
===Z===
*Mrs Zabini – Mother of Blaise Zabini and had been widowed seven times by the start of Blaise's sixth year
*Blaise Zabini – Male Slytherin student in Harry's year
*Ladislaw Zamojski – Polish Quidditch Chaser
*Rose Zeller – Hufflepuff student four years under Harry
*Lev Zograf – Bulgarian Quidditch Keeper
==Characters with no or unknown surname==
===A===
*Algie – Great uncle of Neville Longbottom, gave Trevor to Neville
*Alguff the Awful – Foul smelling goblin who attempts to sell vials of his sweat to Dungbomb manufacturers
*Agnes – Patient in the Janus Thickey Ward of St Mungo's
*Andros the Invincible – Ancient Greek wizard, alleged to have a Patronus the size of a Giant
*Aragog – Acromantula belonging to Rubeus Hagrid, lives in the Forbidden Forest, dies in Half-Blood Prince
*Arcus – Thought to have taken the Elder Wand from Loxias
*Arnold – Pygmy Puff belonging to Ginny Weasley
===B===
*Bane – Centaur who lives in the Forbidden Forest
*Barnabas the Barmy – Subject of a tapestry on the seventh floor of Hogwarts, attempted to dance with trolls
*Basil – Ministry official at the Quidditch World Cup, wears a kilt and poncho in an attempt to replicate Muggle clothing, organizes Portkeys for wizards and witches
*Beedle the Bard – Author of several Wizarding fairy tales, including The Tale of the Three Brothers
*Brother Benedict – Muggle monk who had an encounter with a jarvey
*Bilius – Uncle of the Weasley children, died twenty-four hours after seeing a Grim
*Binky – Rabbit belonging to Lavender Brown
*The Bloody Baron – Slytherin House ghost, suitor and killer of Helena Ravenclaw, killed himself in remorse
*Bogrod – Elderly goblin who works at Gringotts
*Brother Boniface – Muggle monk, maker of turnip wine
*Bozo – Photographer for the Daily Prophet
*Buckbeak (a.k.a. Witherwings) – Hippogriff belonging at various times to Rubeus Hagrid, Sirius Black, and Harry Potter
===C===
*Cecilia – Girlfriend of Tom Riddle Senior before Merope gives him the love potion
*Circe – Ancient Greek enchantress
*Cliodna (or Cliodne) – Irish druidess, Animagus, discovered the properties of Moondew
*Crookshanks – Half-cat/half-kneazle belonging to Hermione Granger
===D===
*Damocles – Inventor of the Wolfsbane Potion, uncle of Marcus Belby, awarded the Order of Merlin (probably has the last name of Belby.)
*Derek – Hogwarts student two years under Harry
*Dobby the house elf – House-elf belonged to the Malfoy family, set free by Lucius Malfoy (due to Harry's design) in Chamber of Secrets, killed by Bellatrix Lestrange saving Harry Potter's life.
*"Dodgy" Dirk – Muggle who had an encounter with a dragon
*Dot – Muggle resident of Little Hangleton
===E===
*Eargit the Ugly – Goblin representative to the Wizard's Council in the fourteenth century
*Egbert the Egregious – Murdered Emeric the Evil to gain possession of the Elder Wand
*Elfric the Eager – Responsible for an uprising
*Emeric the Evil – Possessor of the Elder Wand, killed by Egbert the Egregious
*Enid – Great aunt of Neville Longbottom
*Errol – Owl belonging to the Weasley family
*Ethelred the Ever-Ready – Wizard known for being easily offended
=== F ===
*Fang – Boarhound belonging to Rubeus Hagrid
*The Fat Friar – Hufflepuff House ghost
*The Fat Lady – Witch in the painting that conceals the entrance to the Gryffindor common room
*Fawkes – Phoenix belonging to Albus Dumbledore, saved Harry Potter from Basilisk in the Chamber of Secrets
*Fergus – Cousin of Seamus Finnigan, nephew of Mr and Mrs Finnigan
*Fingal the Fearless – Irish wizard who was an Aingingein champion
*Firenze – Centaur, professor of Divination at Hogwarts
*Florence – Contemporary of Bertha Jorkins
*Fluffy – Three-headed dog belonging to Rubeus Hagrid, protector of the philosopher's stone
*Food Trolley Lady – Itinerant trader on the Hogwarts Express
*Fridwulfa – Giantess, mother of Rubeus Hagrid and Grawp
*Fulbert the Fearful – Never left his house because of his cowardice, died when a Defensive Charm he cast caused his roof to collapse
===G===
*Giant Squid – Unnamed squid living in the Black Lake
*Golgomath – Giant, becomes Gurg after killing Karkus, allied with Death Eaters
*Gordon – Friend of Dudley Dursley
*Gornuk – Goblin, killed by Death Eaters
*Grawp – Giant, half-brother of Rubeus Hagrid, son of Fridwulfa
*The Great Humberto – Muggle television personality
*Gregory the Smarmy – Inventor of Gregory's Unctuous Unction, has a statue in Hogwarts
*Griphook – Goblin, works at Gringotts Bank, killed by Lord Voldemort
*Gunhilda of Gorsemoor – Developed a cure for Dragon Pox, has a statue in Hogwarts
*Gwegnog – Early female Quidditch player
===H===
*Hedwig – Owl belonging to Harry Potter, killed by a killing curse that missed Harry
*Hengist of Upper Barnton – Giant, killed by Giffor Ollerton
*Hengist of Woodcroft – Hufflepuff student in the Middle Ages, founder of Hogsmeade
*Hermes – Owl belonging to Percy Weasley
*Herpo the Foul – Ancient Greek wizard, Parselmouth, creator of the Basilisk, and the first Horcrux
*Hokey – House-elf belonging to Hepzibah Smith
*Honoria – Albus Dumbledore’s maiden aunt
===I===
*Ingolfr the Iambic – Norwegian poet who wrote about Quidditch
===K===
*Karkus – Giant, friendly with the Order of the Phoenix, killed by Golgomath
*Kevin – Toddler who uses his father's wand to blow up a slug at the Quidditch World Cup
*Kreacher – House-elf belonging to the Black family, and later Harry Potter
===L===
*Lachlan the Lanky – Has a statue in Hogwarts
*Lancelot – Cousin of Great Aunt Muriel, Healer at St Mungo's
*Leanne – Hogwarts student during Harry's time at school, friend of Katie Bell, cursed by Draco Malfoy in the attempt to kill Albus Dumbledore
*Livius – Thought to have taken the Elder Wand from Loxias
*Loxias – Possessor of the Elder Wand
===M===
*Magorian – Leader of the centaurs living in the Forbidden Forest
*Malcolm – Friend of Dudley Dursley in the first book
*Master of Mystery- Hermione addresses Ron by this name after she comes out of Borgin & burkes.
*Minerva - Grandmother of Isobel McGonagall née Ross, great-grandmother of Minerva, Malcolm and Robert McGonagall Jr.
*Moaning Myrtle – Muggle-born Ravenclaw student during Tom Marvolo Riddle's time at Hogwarts, killed by the Basilisk in a girl's bathroom, which she continued to haunt
*Mosag – female Acromantula, wife of Aragog
*Mr Paws – Cat belonging to Arabella Figg
*Mrs Norris – Cat belonging to Argus Filch
*Murcus – chieftainess of Merpeople
*Great Aunt Muriel – Great aunt of the Weasley children
===N===
*Nagini – Snake belonging to Lord Voldemort, attacked Arthur Weasley, killed Severus Snape, killed by Neville Longbottom
*Norbert/Norberta – Dragon belonging to Rubeus Hagrid
===O===
*Odo – Subject of a song sung by Rubeus Hagrid and Horace Slughorn in Half-Blood Prince
*Ogg – Gamekeeper at Hogwarts while Molly Weasley was at school
*Olaf – Norwegian wizard, cousin of Goodwin Kneen
*Oona – Innkeeper, early Quidditch supporter
===P===
*Paracelsus – Has a bust in Hogwarts between the Gryffindor common room and the corridor leading to the Owlery
*Peeves – Hogwarts poltergeist who fears the Bloody Baron
*Pigwidgeon "Pig" – Scops Owl belonging to Ron Weasley
*Prudence – Sister of Modesty Rabnott
*Ptolemy – Famous wizard, featured on a Chocolate Frog card
===S===
*Sanguini – Vampire, friend of Eldred Worple
*Savage – Auror
*Scabbers – Rat belonging to Percy and later Ron Weasley; actually unregistered Animagus Peter Pettigrew
*Snowy – Cat belonging to Arabella Figg
*Snuffles/Padfoot - Name of the dog who is really Sirius Black. Unregistered Animagus.
===T===
*Ted – Muggle television newsreader
*Tenebrus – Thestral belonging to Rubeus Hagrid
*Great Aunt Tessie – Great aunt of the Weasley children
*Tibbles – Cat belonging to Arabella Figg
*Tiberius – Uncle of Cormac McLaggen, student of Horace Slughorn
*Tom – Innkeeper of the Leaky Cauldron
*Trevor – Toad belonging to Neville Longbottom
*Trux – Thestral belonging to Veronica Riddle
*Tufty – Cat belonging to Arabella Figg
===U===
*Ug the Unreliable – Goblin con artist, behind the Demiguise Derby
*Ugga – Early Quidditch player
*Urg the Unclean – Goblin leader during the rebellions of the eighteenth century
*Uric the Oddball – Eccentric wizard, Ravenclaw student in the Middle Ages, J. K. Rowling's Wizard of the Month for September 2004
===V===
*Verity – Employee at Weasley's Wizard Wheezes
*Violet – Inhabits a portrait in Hogwarts, friend of the Fat Lady
===W===
*Wendelin the Weird – Witch from the Middle Ages, enjoyed being burned at the stake so much that she allowed herself to be caught no fewer than forty-seven times in various disguises
*Wilfred the Wistful – Has a statue in Hogwarts
*Will – Stole toads from Warty Harris, then had the toads stolen by Mundungus Fletcher
*Winky – House-elf belonging to the Crouch family, later works at Hogwarts
===Y===
*Yvonne – Friend of Petunia Dursley and Vernon Dursley.