Hogwarts staff

Table columns:
Character
Subject/Position
Background

Table rows:
cells: Cuthbert Binns
History of Magic
The History of Magic teacher during the entire series. Binns has the distinction of being the only teacher at Hogwarts who is a ghost. It is said that one day he took a nap in a chair in the teachers' lounge/staff room and died in his sleep; later, he simply got up to go to teach his next class and "left his body behind". His lessons are said to be notoriously boring and it is mentioned that the most exciting thing that ever happens in his class is his "entering through the blackboard". As a ghost he seems unaware of his change from living to dead. In the second book it is he who describes the legend of the Chamber of Secrets when asked by the students, but in the film version it is McGonagall, as Binns does not appear in any of the films. He constantly gets the students' names wrong and is often so absent-minded he is amazed to find the class filled with students.
cells: Charity Burbage
Muggle Studies
The Muggle Studies teacher before Harry's seventh years; she does not appear until Harry Potter and the Deathly Hallows (as Harry has no need to take the class). Because her teachings about Muggles gave an overall favourable impression of them, going so far as to write an editorial praising Muggles in the Daily Prophet, she runs afoul of the Death Eaters, whose philosophy asserts the supremacy of pure-bloods. She becomes a prisoner of Lord Voldemort in the seventh book; he tortures and kills her before feeding her to Nagini. The character (played by Carolyn Pickles) appears briefly in the film Harry Potter and the Deathly Hallows – Part 1.
cells: Alecto and Amycus Carrow
Muggle Studies / Deputy Headmaster and Headmistress / Dark Arts
The Carrows are sibling Death Eaters, posted as Deputy Headmaster and Deputy Headmistress to Hogwarts to keep control over the school, maintain a reign of fear and to take charge of punishment under Snape's regime as Headmaster in Harry Potter and the Deathly Hallows. Alecto Carrow taught Muggle Studies, now a required course; however, instead of encouraging understanding of Muggles, she taught ideologies that Muggles were no better than animals. Amycus Carrow taught Defence Against the Dark Arts; however it is noted that there was no defence involved because they had changed the name to Dark Arts, so Amycus frequently taught students the Unforgivable Curses and openly encouraged them to practice these on their classmates who earned themselves detention. Alecto was Stunned by Luna Lovegood and Harry used the Cruciatus Curse on Amycus when he spat in McGonagall's face. McGonagall subsequently put Amycus under the Imperius Curse and tied the unconscious siblings up, where they presumably remained throughout the Battle of Hogwarts.
cells: Albus Dumbledore
Transfiguration / deputy headmaster / headmaster
The Headmaster of Hogwarts since a few decades before Harry's birth until Harry's sixth year at Hogwarts when Dumbledore is killed by Snape on his request. Dumbledore served previously as Transfiguration teacher during Tom Riddle's time at Hogwarts and as Head of Gryffindor House and Deputy Headmaster. Dumbledore was also the founder of The Order of the Phoenix. He was awarded many titles, most of which were removed by Minister for Magic Fudge after he accused Dumbledore of conspiring to take over the Ministry.
cells: Argus Filch
Caretaker
The squib caretaker of Hogwarts during the entire series owns a cat named Mrs Norris. He hates all students and he is bitter about not possessing magical abilities.
cells: Firenze
Divination
A centaur, he previously lived with his herd in the Forbidden Forest. In the Order of the Phoenix, after Sybill Trelawney is fired by Dolores Umbridge, he is hired by Dumbledore to teach Divination in her stead. The other centaurs found this dishonourable and sacked him from the herd. By Half-Blood Prince, Trelawney was reinstated as Divination teacher, but due to Firenze's situation with his herd, Dumbledore had them teach Divination concurrently until Firenze returns to the Forest after the Battle of Hogwarts.
cells: Filius Flitwick
Charms
The Charms teacher and Head of Ravenclaw House during the entire series. He is also shown to be the director of the school's choir in the film adaptation of Prisoner of Azkaban and Order of the Phoenix.
cells: Wilhelmina Grubbly-Plank
Care of Magical Creatures
A substitute Care of Magical Creatures teacher. She first appears in Harry Potter and the Goblet of Fire, taking lessons when Hagrid is unable to teach, and substitutes again in Harry Potter and the Order of the Phoenix when Hagrid is away on a mission for the Order of the Phoenix. A number of students in Harry's year prefer Grubbly-Plank, as unlike Hagrid, she is quite happy to teach them about creatures that don't have poisonous fangs, or deadly talons. Despite Harry's initial distrust of her abilities compared to Hagrid, she is a competent teacher - recognising the cause of Hedwig's injuries, and healing her with little difficulty.
cells: Rubeus Hagrid
Care of Magical Creatures / Grounds Keeper
The Half-giant gamekeeper, Keeper of Keys and Grounds, and, from Harry's third year at Hogwarts, the Care of Magical Creatures professor. He has a habit of introducing dangerous creatures, which he considers harmless, to the students.
cells: Rolanda Hooch
Flying
The Quidditch referee during the entire series, and flying instructor for first year students. She is described as having short, spiky, grey hair, with piercing yellow hawk-like eyes, usually hidden behind goggles. Her expertise is called on along with Professor Flitwick's to test Harry's Firebolt broom for dark magic. She was played by Zoe Wanamaker in The Philosopher's Stone film
cells: Silvanus Kettleburn
Care of Magical Creatures
The Care of Magical Creatures teacher since Armando Dippet (Dumbledore's predecessor) was headmaster. He eventually retires to "spend time with his remaining limbs", and his place is eventually taken by Hagrid in Prisoner of Azkaban.
cells: Gilderoy Lockhart
Defence Against the Dark Arts
The Defence Against the Dark Arts teacher in Harry Potter and the Chamber of Secrets (Harry's second year at Hogwarts). He is adored by the female students by his charm and his popularity in the wizarding world, but is actually a coward and a fraudster who took stories from other wizards and then erased their memories. He loses his own memory when a spell backfires on him and is subsequently hospitalized for long-term care.
cells: Remus Lupin
Defence Against the Dark Arts
The Defence Against the Dark Arts teacher in Harry Potter and the Prisoner of Azkaban (Harry's third year at Hogwarts). He is loved by most students (except for those in Slytherin house) for being the best Defence Against the Dark Arts teacher. He resigns at the end of that year after Snape reveals that he is a werewolf. He later becomes a member of the Order of the Phoenix in Harry Potter and the Order of the Phoenix and marrys Nymphadora Tonks in Harry Potter and the Deathly Hallows. They have a son, Teddy Lupin, with Harry as his godfather. He is killed by Death Eater Antonin Dolohov in the Battle of Hogwarts and Harry speaks to him through the Resurrection Stone along with his parents and godfather Sirius Black, all of whom were close friends of Lupin while they were at Hogwarts.
cells: Minerva McGonagall
Transfiguration / Deputy Headmistress / Headmistress
The Transfiguration teacher and Head of Gryffindor House during the entire series. Deputy Headmistress during the first six novels. Temporary Headmistress when Dumbledore was sacked in Chamber of Secrets. Temporary Headmistress after Dumbledore's death in Half-Blood Prince. Revealed to be the Headmistress in Cursed Child.
cells: Alastor "Mad-Eye" Moody
Defence Against the Dark Arts
Moody is appointed as Defence Against the Dark Arts teacher in Harry Potter and the Goblet of Fire (Harry's fourth year at Hogwarts). A former Auror, he gained his nickname for the magical eye he wears to replace one he lost in the line of duty. At the end of the book, Moody is revealed as an impostor, Barty Crouch Jr, who had captured the real Moody one day before the start of term as part of a plan to deliver Harry to Lord Voldemort to help his resurrection. Moody reappears in the series as an active Order of the Phoenix member but never actually teaches. He is killed by Voldemort after his companion, fellow order member Mundungus Fletcher, who was impersonating Harry as a decoy to throw the Death Eaters off the real Harry's trail, flees upon Voldemort's arrival.
cells: Irma Pince
Librarian
The librarian of Hogwarts during the entire series. She is compared to an "underfed vulture", and is very possessive and protective with the library books, many times screaming at Ron and Harry. Dumbledore relates that while she agreed to allow the Hogwarts copy of Quidditch through the Ages to be used for a special facsimile copy, handing over the book ran so counter to her nature that she was struck by an unusual form of paralysis and he had to prise her fingers from the book manually. She was played by Sally Mortemore in The Chamber of Secrets film
cells: Poppy Pomfrey
Matron
The Matron and nurse in charge of the hospital wing during the entire series, being on the position for decades. It was mentioned once that she worked at St. Mungo's before transferring to Hogwarts. She has a reputation for strictness, but when faced with Dolores Umbridge's and later the Death Eaters' abuse of the students, she admits that she never even considered resigning, refusing to leave the students when they needed her most.
cells: Quirinus Quirrell
Muggle Studies / Defence Against the Dark Arts
The Defence Against the Dark Arts teacher in Harry Potter and the Philosopher's Stone (Harry's first year at Hogwarts). He later turns out to be possessed by Voldemort and is dead by the end of the book.
cells: Aurora Sinistra
Astronomy
The Astronomy teacher during the entire series. Sinistra assists Professor Flitwick in moving a petrified Justin Finch-Fletchley to the hospital wing in Chamber of Secrets and is mentioned sporadically throughout the series.
cells: Horace Slughorn
Potions
A former Potions master and Head of Slytherin for several decades prior to Harry's birth, Slughorn agrees to come out of retirement and return to these functions at the beginning of Half-Blood Prince. He stays in the job after Voldemort's takeover but sides firmly with the Hogwarts staff against him in Deathly Hallows.
cells: Severus Snape
Potions / Headmaster / Defence Against the Dark Arts
The Potions master from Harry's first to fifth years, head of Slytherin House from Harry's first to sixth years and Defence Against the Dark Arts teacher in Harry Potter and the Half-Blood Prince (Harry's sixth year at Hogwarts). Snape serves as Headmaster in Harry Potter and the Deathly Hallows, having been appointed by the Minister for Magic, Pius Thicknesse (who was controlled by Voldemort) until he is killed by Voldemort in the final chapters of the novel.
cells: Pomona Sprout
Herbology
The Herbology teacher and Head of Hufflepuff House during the entire series. She held the job for years, and she carried the position after the Battle of Hogwarts, until she retired and was replaced by Neville Longbottom who, by the time of the epilogue, is said to be the Herbology teacher.
cells: Sybill Trelawney
Divination
The Divination teacher from 1980 (Harry's birth year) until Order of the Phoenix, when she is fired by Umbridge. Trelawney returns to the work in Half-Blood Prince and Deathly Hallows, sharing the position with Firenze.
cells: Dolores Umbridge
Defence Against the Dark Arts / Headmistress
The Defence Against the Dark Arts teacher in Harry Potter and the Order of the Phoenix (Harry's fifth year at Hogwarts). She was appointed by the Ministry of Magic to address the rumours concerning Voldemort's return that extended from there the previous summer. Umbridge extracted control, becoming Hogwarts' first and only High Inquisitor, and briefly Headmistress after Dumbledore took responsibility for the DA.
cells: Septima Vector
Arithmancy
The Arithmancy teacher during the entire series, known to give her students large amounts of homework. She is only mentioned, as Arithmancy is Hermione's favorite class, but Harry never signed up for it.

Questions about this table:
originalText: who is the headmaster of hogwarts after dumbledore died
answer: answerTexts: Severus Snape