Daniel Radcliffe Harry Potter Rupert Grint Ron Weasley Emma Watson Hermione Granger Kenneth Branagh Gilderoy Lockhart Robbie Coltrane Rubeus Hagrid Richard Harris Albus Dumbledore Jason Isaacs Lucius Malfoy Alan Rickman Severus Snape Tom Felton Draco Malfoy Shirley Henderson Moaning Myrtle Richard Griffiths Vernon Dursley Fiona Shaw Petunia Dursley Warwick Davis Filius Flitwick Maggie Smith Minerva McGonagall Julie Walters Molly Weasley David Bradley Argus Filch Sean Biggerstaff Oliver Wood Robert Hardy Cornelius Fudge John Cleese Nearly Headless Nick (Sir Nicholas) Gemma Jones Poppy Pomfrey Miriam Margolyes Pomona Sprout Mark Williams Arthur Weasley Harry Melling Dudley Dursley Bonnie Wright Ginny Weasley James Phelps Fred Weasley Oliver Phelps George Weasley Chris Rankin Percy Weasley Toby Jones Dobby (voice) Josh Herdman Gregory Goyle Jamie Waylett Vincent Crabbe Christian Coulson Tom Riddle Matthew Lewis Neville Longbottom Alfred Enoch Dean Thomas Devon Murray Seamus Finnigan Luke Youngblood Lee Jordan Hugh Mitchell Colin Creevey Edward Randell Justin Finch-Fletchley Veronica Clifford Mrs Mason Jim Norton Mr Mason Tom Knight Mr Granger Heather Bleasdale Mrs Granger Isabella Columbus Girl in Bookstore Julian Glover Aragog (voice)