Confirmed Cast Members [ in order of appearance ]

Actor / Actress	Character
Richard Harris	Prof. Albus Dumbledore
Dame Maggie Smith	Prof. Minerva McGonagall
Robbie Coltrane	Rubeus Hagrid
Saunders Triplets	Baby Harry Potter
Daniel Radcliffe	Harry Potter
Fiona Shaw	Aunt Petunia Dursley
Harry Melling	Dudley Dursley
Richard Griffiths	Unlce Vernon Dursley
Derek Deadman	Tom - Leaky Cauldron Barman
Ian Hart	Prof. Quirinus Quirrell
Warwick Davies	Goblin Bank Teller
Vern Troyer	Griphook - Safe Opener
John Hurt	Mr Ollivander
Richard Bremmer	"He Who Must Not Be Named"
Geraldine Somerville	Lily Potter
Harry Taylor	Station Guard
Julie Walters	Molly Weasley
Bonnie Wright	Ginny Weasley
Chris Rankin	Percy Weasley
James Phelps	Fred Weasley
Oliver Phelps	George Weasley
Rupert Grint	Ron Weasley
Jean Southern	Trolley Lady
Emma Watson	Hermione Granger
Matthew Lewis	Neville Longbotton
Tom Felton	Draco Malfoy
James Waylett	Vincent Crabbe
Josh Herdman	Gregory Goyle
Deven Murray	Seamus Finnigan
Alfie Enoch	Dean Thomas
Leslie Phillips	Sorting Hat
Eleaner Columbus	Susan Bones
John Cleese	Nearly Headless Nick
Terrence Bayler	The Bloody Barron
Simon Fisher Becker	The Fat Friar
Nina Young	The Grey Lady
David Bradley	Argus Filch
Alan Rickman	Prof. Severus Snape
Zoë Wanamaker	Madam Rolanda Hooch
Warwick Davies	Prof. Filius Flitwick
Luke Young Blood	Lee Jordan
Sean Biggerstaff	Oliver Wood
Elizabeth Sprigg	The Fat Lady
Danielle Taylor	Angelina Johnson
Leilah Sutherland	Alicia Spinnet
Emily Dale	Katy Bell
David Holmes	Adrian Puccy
Will Theakston	Marcus Flint
Scott Fern	Terrence Higgs
Adrian Rawlins	James Potter
Firenze	Ray Fearon