Daniel Radcliffe Harry Potter Rupert Grint Ron Weasley Emma Watson Hermione Granger Imelda Staunton Dolores Umbridge Helena Bonham Carter Bellatrix Lestrange Robbie Coltrane Rubeus Hagrid Gary Oldman Sirius Black Ralph Fiennes Lord Voldemort Michael Gambon Albus Dumbledore Alan Rickman Severus Snape Richard Griffiths Vernon Dursley Brendan Gleeson Alastor "Mad-Eye" Moody Jason Isaacs Lucius Malfoy Evanna Lynch Luna Lovegood Katie Leung Cho Chang Warwick Davis Filius Flitwick Fiona Shaw Petunia Dursley Maggie Smith Minerva McGonagall David Thewlis Remus Lupin Emma Thompson Sybill Trelawney Julie Walters Molly Weasley David Bradley Argus Filch Tom Felton Draco Malfoy Robert Hardy Cornelius Fudge George Harris Kingsley Shacklebolt Natalia Tena Nymphadora Tonks Mark Williams Arthur Weasley Harry Melling Dudley Dursley Kathryn Hunter Arabella Figg Miles Jupp TV Weatherman Jessica Hynes Mafalda Hopkirk (voice) Adrian Rawlins James Potter Geraldine Somerville Lily Potter Peter Cartwright Elphias Doge Brigitte Millar Emmeline Vance Timothy Bateson Kreacher (voice) James Phelps Fred Weasley Oliver Phelps George Weasley Bonnie Wright Ginny Weasley Jamie Wolpert Newspaper Vendor Nicholas Blane Bob Daisy Haggard Lift (voice) Chris Rankin Percy Weasley Sian Thomas Amelia Bones Jamie Waylett Vincent Crabbe Josh Herdman Gregory Goyle Matthew Lewis Neville Longbottom Ryan Nelson Slightly Creepy Boy William Melling Nigel 2nd Year Apple Brook Wilhelmina Grubbly-Plank Devon Murray Seamus Finnigan Alfred Enoch Dean Thomas Afshan Azad Padma Patil Shefali Chowdhury Parvati Patil Jim McManus Barman Nick Shirm Somewhat Doubtful Boy Sam Beazley Everard John Atterbury Phineas Arben Bajraktaraj Azkaban Death Eater Robbie Jarvis Young James Potter Peter Best Death Eater Timothy Spall Peter Pettigrew (uncredited)