Terence Baylor as "The Bloody Barron"	Sean Biggerstaff as "Oliver Wood"
Emily Dale as "Katie Bell"	John Cleese as "Nearly-Headless Nick"
Robbie Coltrane as "Rubeus Hagrid"	Warwick Davis as "Professor Flitwick"
Tom Felton as "Draco Malfoy"	Simon Fisher-Becker as "The Fat Friar"
Richard Griffiths as "Vernon Dursley"	Rupert Grint as "Ron Weasley"
Richard Harris as "Albus Dumbledore"	Ian Hart as "Professor Quirrell"
Joshua Herdman as "Gregory Goyle"	Harry Melling as "Dudley Dursley"
James Phelps as "Fred Weasley"	Oliver Phelps as "George Weasley"
Daniel Radcliffe as "Harry Potter"	Chris Rankin as "Percy Weasley"
Alan Rickman as "Severus Snape"	Fiona Shaw as "Petunia Dursley"
Dame Maggie Smith as "Prof. McGonagall"	Leila Sutherland as "Alicia Spinnet"
Danielle Tabor as "Angelina Johnson"	Verne Troyer as "Griphook"
Zoe Wannamaker as "Madame Hooch"	Emma Watson as "Hermione Granger"
James Waylett as "Vincent Crabbe"	Nina Young as "The Grey Lady"

David Bradley - Argus Filch
Richard Bremmer - Lord Voldemort
Kathleen Cauley - Lavender Brown
Mike Edmonds - Gringotts Goblin
Alfie Enoch - Dean Thomas
Rusty Goffe - Gringotts Goblin
John Hurt - Mr. Ollivander
Matthew Lewis - Neville Longbottom
Rik Mayall - Peeves the Poltergeist
Devon Murray - Seamus
Katharine Nicholson - Pansy Parkinson
Leslie Phillips - The Sorting Hat
Elizabeth Spriggs - The Fat Lady
Will Theakston - Marcus Flint
Julie Walters - Mrs. Weasley
Bonnie Wright - Ginny Weasley

and...

Gloucester Cathedral - Hogwarts
Ook the White Owl - Hedwig
John Williams - composer
Chris Columbus - director
Joss Gower - stunts for Voldemort
Kheo Kypri - stunts for Voldemort
Gregory Powell - Stunt Coordinator
Paul Spateri - makeup