Cast[]
- Daniel Radcliffe as Harry Potter
- Rupert Grint as Ron Weasley
- Emma Watson as Hermione Granger
- Kenneth Branagh as Gilderoy Lockhart
- John Cleese as Nearly Headless Nick
- Robbie Coltrane as Rubeus Hagrid
- Warwick Davis as Filius Flitwick
- Richard Griffiths as Vernon Dursley
- Richard Harris as Albus Dumbledore
- Jason Isaacs as Lucius Malfoy
- Alan Rickman as Severus Snape
- Fiona Shaw as Petunia Dursley
- Maggie Smith as Minerva McGonagall
- Julie Walters as Molly Weasley
- David Bradley as Argus Filch
- Tom Felton as Draco Malfoy
- Sean Biggerstaff as Oliver Wood
- Robert Hardy as Cornelius Fudge
- Shirley Henderson as Moaning Myrtle
- Gemma Jones as Poppy Pomfrey
- Miriam Margolyes as Pomona Sprout
- Mark Williams as Arthur Weasley
- Harry Melling as Dudley Dursley
- Toby Jones as Dobby (voice)
- James Phelps as Fred Weasley
- Oliver Phelps as George Weasley
- Bonnie Wright as Ginny Weasley
- Chris Rankin as Percy Weasley
- Andrew Sachs as Mr. Borgin
- Matthew Lewis as Neville Longbottom
- Devon Murray as Seamus Finnigan
- Jamie Waylett as Vincent Crabbe
- Josh Herdman as Gregory Goyle
- Hugh Mitchell as Colin Creevey
- Alfie Enoch as Dean Thomas
- Rik Mayall as Peeves
- Joanna Lumley as Irma Pince
- Michael Gough as The Sorting Hat (voice)
- Christian Coulson as Tom Marvolo Riddle
- Ian McShane as Aragog (voice)
- Jennifer Saunders as Lily Potter (uncredited)
- Colin Farrell as James Potter (uncredited)
