The Cast
The cast of the first Harry Potter movie includes the following:

Harry Potter - Daniel Radcliffe

Ron Weasley - Rupert Grint
Hermione Granger - Emma Watson


Albus Dumbledore - Richard Harris
Draco Malfoy - Tom Felton

Lord Voldemort - Richard Bremmer

Argus Filch - David Bradley
Dean Thomas - Alfie Enoch
Dudley Dursley - Harry Melling
Ginny Weasley - Bonnie Wright
Gregory Goyle - Joshua Herdman
Gringotts Goblin - Mike Edmonds
Gringotts Goblin - Rusty Goffe
Griphook - Verne Troyer
Nearly-Headless Nick - John Cleese
Oliver Wood - Sean Biggerstaff
Madame Hooch - Zoe Wanamaker
Mr. Ollivander - John Hurt
Mrs. Weasley - Julie Walters
Neville Longbottom - Matthew Lewis
Pansy Parkinson - Katharine Nicholson
Peeves the Poltergeist - Rik Mayall
Percy Weasley - Chris Rankin
Petunia Dursley - Fiona Shaw
Professor Flitwick - Warwick Davis
Professor McGonagall - Dame Maggie Smith
Professor Quirrell - Ian Hart
Rubeus Hagrid - Robbie Coltrane
Seamus - Devon Murray
Severus Snape - Alan Rickman
The Fat Lady - Elizabeth Spriggs
The Sorting Hat - Leslie Phillips
Vernon Dursley - Richard Griffiths
Vincent Crabbe - James Waylett
Weasley twin - James Phelps
Weasley twin - Oliver Phelps


Other...
Director - Chris Columbus
Composer - John Williams

Hedwig - Ook the White Owl
Hogwarts - Gloucester Cathedral
Makeup - Paul Spateri
Stunt Coordinator - Gregory Powell
Stunts for Voldemort - Joss Gower
Stunts for Voldemort - Kheo Kypri