Daniel Radcliffe (Harry Potter), Rupert Grint (Ron Weasley), Emma Watson (Hermione Granger), Richard Harris (Albus Dumbledore), Tom Felton (Draco Malfoy), Alan Rickman (Severus Snape), Robbie Coltrane (Rubeus Hagrid) more..., Maggie Smith (Minerva McGonagall), Richard Griffiths (Vernon Dursley), Ian Hart (Quirinus Quirrell), Fiona Shaw (Petunia Dursley), John Hurt (Mr. Ollivander), David Bradley (Argus Filch), Matthew Lewis (Neville Longbottom), Sean Biggerstaff (Oliver Wood), Warwick Davis (Goblin Bank Teller / Filius Flitwick / Griphook (voice)), Harry Melling (Dudley Dursley), James Phelps (Fred Weasley), Oliver Phelps (George Weasley), John Cleese (Nearly Headless Nick), Chris Rankin (Percy Weasley), Alfred Enoch (Dean Thomas), Devon Murray (Seamus Finnigan), Jamie Waylett (Vincent Crabbe), Josh Herdman (Gregory Goyle), Zoë Wanamaker (Madam Hooch), Julie Walters (Molly Weasley), Bonnie Wright (Ginny Weasley), Luke Youngblood (Lee Jordan), Verne Troyer (Griphook), Adrian Rawlins (James Potter), Geraldine Somerville (Lily Potter), Elizabeth Spriggs (The Fat Lady), Richard Bremmer (Lord Voldemort), Nina Young (The Grey Lady), Terence Bayler (The Bloody Baron), Harry Taylor (Station Guard), Leslie Phillips (The Sorting Hat (voice)), Simon Fisher-Becker (Fat Friar), Derek Deadman (Bartender in Leaky Cauldron) and others.

J.K. Rowling (Novel), Steve Kloves (Screenplay), David Heyman (Producer), John Williams (Original Music Composer), John Seale (Director of Photography), Richard Francis-Bruce (Editor), Susie Figgis (Casting) more..., Janet Hirshenson (Casting), Jane Jenkins (Casting), Karen Lindsay-Stewart (Casting), Stuart Craig (Production Design), Andrew Ackland-Snow (Art Direction), Stephenie McMillan (Set Decoration), Judianna Makovsky (Costume Design), Clare Le Vesconte (Makeup Artist), Martin Cantwell (Sound Effects Editor), Nigel Brackley (Special Effects), Jim Berney (Visual Effects Supervisor), Henry Allen (Stunts), Greg Powell (Stunt Coordinator), Todd Arnow (Associate Producer), Michael Barnathan (Executive Producer), Chris Columbus (Executive Producer), Duncan Henderson (Executive Producer), Mark Radcliffe (Executive Producer), Tanya Seghatchian (Co-Producer), Paula DuPré Pesmen (Associate Producer), Peter Francis (Art Direction), Michael Lamont (Art Direction), Simon Lamont (Art Direction), Steven Lawrence (Art Direction), Lucinda Thomson (Art Direction), Cliff Robinson (Art Direction), Lisa Turner (Art Department Coordinator), Dominic Masters (Assistant Art Director), Malcolm Roberts (Construction Coordinator), Larry Gooch (Painter), Cyrille Nomberg (Production Illustrator), Bryn Court (Sculptor), Michael Boone (Set Designer) and others.