Cast:
Daniel Radcliffe as Harry Potter
Emma Watson as Hermione Granger
Rupert Grint as Ron Weasley
Maggie Smith as Professor McGonagall
Zoe Wannamaker as Madame Hooch
Robbie Coltrane as Hagrid
Richard Griffiths as Uncle Vernon
Fiona Shaw as Aunt Petunia
Ian Hart as Professor Quirrell
Verne Troyer as Peeves the Poltergeist
Devon Murray as Seamus
Zoe Wannamaker as Madame Hooch
Alan Rickman as Professor Severus Snape
Julie Walters as Mrs Weasley
John Cleese as Nearly Headless Nick
Richard Harris as Professor Dumbledore
Warwick Davis as a Goblin Banker & Professor Flitwick

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Magically appearing in theatres 
 
 

Will Theakston as Marcus Flint
Emily Dale as Katie Bell
Scott Fearn as Terence Higgs
Bonnie Wright as Ginny Weasley
Matthew Lewis as Neville Longbottom
Alfie Enoch as Dean Thomas
Oliver Phelps as George Weasley
James Phelps as Fred Weasley
Lucien Lawrence
Aaron Cartwright
Geraldine Somerville as Lily Potter
Adrian Rawlins as James Potter
Jake Lamb
Harry Melling as Dudley Dursley

Crew:
Chris Columbus - Director
Steven Kloves - Writer
J.K. Rowling - Original Story
David Heyman - Producer
John Williams - Music