Question: Which fictional character in the Harry Potter film was played by Robbie Coltrane? 

Context articles: A Very Potter Musical
Robbie Coltrane
James Potter (series)
Rubeus Hagrid
List of Harry Potter cast members
Katie Leung
Simon Fisher-Becker
Lego Harry Potter
Draco Malfoy
The Magical Worlds of Harry Potter

A Very Potter Musical (originally titled Harry Potter: The Musical and often shortened to AVPM) is a musical with music and lyrics by Darren Criss and A. J. Holmes and a book by Matt Lang, Nick Lang and Brian Holden.
 The story is a parody, based on several of the "Harry Potter" novels (particularly "Harry Potter and the Philosopher's Stone", "Harry Potter and the Goblet of Fire" and "Harry Potter and the Deathly Hallows") by J. K. Rowling, as well as their film counterparts.
Robbie Coltrane, OBE (born Anthony Robert McMillan; 30 March 1950) is a Scottish actor and author.
 He is known for his roles as Rubeus Hagrid in the "Harry Potter" films, as Valentin Dmitrovich Zukovsky in the James Bond films "GoldenEye" and "The World Is Not Enough," and as Dr. Eddie "Fitz" Fitzgerald in the British TV series "Cracker" during the 1990s.
The James Potter series is an unofficial sequel-series of J.K. Rowling's Harry Potter universe, written by G. Norman Lippert.
 The novel series centers around the character of James Sirius Potter, Harry Potter's son, a character who makes a fleeting appearance in the novel "Harry Potter and the Deathly Hallows".
 The series starts with his first year at Hogwarts, set one year before the end of the Harry Potter series.
Rubeus Hagrid is a fictional character in the "Harry Potter" book series written by J. K. Rowling.
 He is introduced in "Harry Potter and the Philosophers Stone" as a half-giant and half-human who is the gamekeeper and Keeper of Keys and Grounds of Hogwarts, the primary setting for the first six novels.
 In the third novel "Harry Potter and the Prisoner of Azkaban", Hagrid is promoted to Care of Magical Creatures teacher, and is later revealed to be a member of the Order of the Phoenix.
Several actors of the United Kingdom and Ireland have voiced or portrayed characters appearing in the "Harry Potter" film series based on the book series by J. K. Rowling.
 Daniel Radcliffe, Rupert Grint and Emma Watson have played Harry Potter, Ron Weasley and Hermione Granger in all the films.
 When they were cast only Radcliffe had previously acted in a film.
 Complementing them on screen are such actors as Helena Bonham Carter, Jim Broadbent, John Cleese, Robbie Coltrane, Warwick Davis, Ralph Fiennes, Michael Gambon, Brendan Gleeson, Richard Griffiths, Richard Harris, John Hurt, Jason Isaacs, Miriam Margolyes, Helen McCrory, Gary Oldman, Alan Rickman, Fiona Shaw, Maggie Smith, Timothy Spall, Imelda Staunton, David Thewlis, Emma Thompson, and Julie Walters, among others.
 Thirteen actors have appeared as the same character in all eight films of the series.
Katie Liu Leung (born 8 August 1987) is a Scottish film, television, and stage actress.
 She played Cho Chang, the first love interest for lead character Harry Potter in the Harry Potter film series.
 In 2012, Leung made her stage debut in the play "Wild Swans".
 Leung has an interest in painting and photography and studied art and design at the University of the Arts, London.
Simon Fisher-Becker, Viscount of William & Mona (born 25 November 1961) is an English stage, television and film actor, specialising in comedy and character parts.
 His more notable roles include Tony Fazackerley in Puppy Love for the BBC, The Fat Friar in the Harry Potter film "Harry Potter and the Philosopher's Stone", and Dorium Maldovar in series 5 and 6 of "Doctor Who".
Lego "Harry Potter" is a Lego theme based on the films of the "Harry Potter" series.
 Lego models of important scenes, vehicles and characters were made for the first six films and all the books released.
 The first sets appeared in 2001, to coincide with the release of the first film "Harry Potter and the Philosopher's Stone" (Harry Potter and the Sorcerer's Stone in the United States).
 Subsequent sets were released alongside the new films, until Harry Potter and the Order of the Phoenix.
 The line then went dormant for three years.
 It is unknown if the theme will again be revived to coincide with future installations in the Harry Potter franchise, such as the film Fantastic Beasts and Where to Find Them.
Draco Lucius Malfoy is a character in J. K. Rowling's "Harry Potter" series.
 He is a student in Harry Potter's year belonging in the Slytherin house.
 He is frequently accompanied by his two cronies, Vincent Crabbe and Gregory Goyle, who act as henchmen.
 Draco is characterised as a cowardly bully who manipulates and hurts people to get what he wants; nevertheless, he is a cunning user of magic.
 He was played by Tom Felton in the Harry Potter film series.
The Magical Worlds of Harry Potter: A Treasury of Myths, Legends, and Fascinating Facts is a guide to the fictional "Harry Potter" universe, written by David Colbert.
 It explores the references to history, legends, and literature in J.K. Rowling's "Harry Potter" novels.
 Colbert conceived the idea for "The Magical Worlds of Harry Potter" while quizzing his nephew and nieces about the mythological references in the novels.
 He later wrote the book while teaching a seminar on self-publishing to graduate students at the University of North Carolina.
 The book was published in March 2001, without approval from Rowling, and has since received positive reviews from critics.
 An updated version of "The Magical Worlds of Harry Potter" was published in 2004 by Berkley Books.