Alfonso Cuarón Director Daniel Radcliffe Harry Potter Actor Rupert Grint Ron Weasley Actor Emma Watson Hermione Granger Actor Gary Oldman Sirius Black Actor David Thewlis Professor Lupin Actor Michael Gambon Professor Dumbledore Actor Alan Rickman Professor Snape Actor Maggie Smith Professor McGonagall Actor Robbie Coltrane Rubeus Hagrid Actor Tom Felton Draco Malfoy Actor Emma Thompson Professor Trelawney Actor Julie Walters Mrs. Weasley Actor Timothy Spall Peter Pettigrew Actor Julie Christie Madame Rosmerta Actor Peter Best The Executioner Actor David Bradley Argus Filch Actor Alfred Enoch Dean Thomas Actor Pam Ferris Aunt Marge Actor Dawn French Fat Lady in Painting Actor Jimmy Gardner Ernie the Bus Driver Actor Richard Griffiths Vernon Dursley Actor Fiona Shaw Petunia Dursley Actor Josh Herdman Gregory Goyle Actor Matthew Lewis Neville Longbottom Actor Devon Murray Seamus Finnegan Actor Chris Rankin Percy Weasley Actor Jim Tavaré Tom the Innkeeper Actor Jamie Waylett Vincent Crabbe Actor Paul Whitehouse Sir Cadogan Actor Harry Melling Dudley Dursley Actor Mark Williams Arthur Weasley Actor Chris Columbus Producer David Heyman Producer Mark Radcliffe Producer J.K. Rowling Writer Steve Kloves Screenwriter Michael Barnathan Executive Producer John Williams Original Music Michael Seresin Cinematographer Steven Weisberg Film Editing Jina Jay Casting Jany Temime Costume Design Callum McDougall Executive Producer Tanya Seghatchian Executive Producer Stuart Craig Production Design Steve Hamilton Special Effects Supervisor Tim Burke Visual Effects Supervisor Alan Gilmore Art Director Steven Lawrence Art Director Gary Tomkins Art Director Alexandra Walker Art Director Stephenie McMillan Set Decoration