Daniel Radcliffe (Harry Potter), Rupert Grint (Ron Weasley), Emma Watson (Hermione Granger), Gary Oldman (Sirius Black), Alan Rickman (Severus Snape), David Thewlis (Remus Lupin), Tom Felton (Draco Malfoy) more..., Michael Gambon (Albus Dumbledore), Robbie Coltrane (Rubeus Hagrid), Emma Thompson (Sybill Trelawney), Maggie Smith (Minerva McGonagall), Bonnie Wright (Ginny Weasley), James Phelps (Fred Weasley), Oliver Phelps (George Weasley), Timothy Spall (Peter Pettigrew), Matthew Lewis (Neville Longbottom), David Bradley (Argus Filch), Julie Walters (Molly Weasley), Mark Williams (Arthur Weasley), Richard Griffiths (Vernon Dursley), Fiona Shaw (Petunia Dursley), Harry Melling (Dudley Dursley), Alfred Enoch (Dean Thomas), Devon Murray (Seamus Finnegan), Jamie Waylett (Vincent Crabbe), Josh Herdman (Gregory Goyle), Chris Rankin (Percy Weasley), Robert Hardy (Cornelius Fudge), Pam Ferris (Marge Dursley), Warwick Davis (Filius Flitwick), Dawn French (The Fat Lady), Lee Ingleby (Stan Shunpike), Lenny Henry (Dre Head (voice)), Genevieve Gaunt (Pansy Parkinson), Sitara Shah (Parvati Patel), Danielle Tabor (Angelina Johnson), Bronson Webb (Pike), Jim Tavaré (Tom), Ekow Quartey (Bem), Jimmy Gardner (Ernie the Bus Driver) and others.

J.K. Rowling (Novel), Steve Kloves (Screenplay), David Heyman (Producer), Mark Radcliffe (Producer), John Williams (Original Music Composer), Michael Seresin (Director of Photography), Steven Weisberg (Editor) more..., Jina Jay (Casting), Stuart Craig (Production Design), Alan Gilmore (Art Direction), Steven Lawrence (Art Direction), Gary Tomkins (Art Direction), Alexandra Walker (Art Direction), Stephanie McMillan (Set Decoration), Jany Temime (Costume Design), Elizabeth Lewis (Makeup Artist), Andrew Ackland-Snow (Art Direction), David Evans (Supervising Sound Editor), Mark Bullimore (Special Effects), Greg Powell (Stunt Coordinator), Martin Bayfield (Stunts), Rob Dunbar (Visual Effects), Christoph Schinko (3D Animator), Alan McPherson (Best Boy Electric), Caine Dickinson (Lighting Supervisor), Enfys Dickinson (Creative Producer), Anthony Rizzo (Digital Effects Supervisor), Gabriele Zucchelli (Animation), Michael Barnathan (Executive Producer), Chris Carreras (Associate Producer), Callum McDougall (Executive Producer), Lorne Orleans (Producer), Tanya Seghatchian (Executive Producer), Paula DuPré Pesmen (Associate Producer), John Ensby (Color Timer), Grace Lan (Digital Intermediate), Darren Holland (Rigging Grip), Richard Beggs (Sound Designer), James Harrison (Sound Editor), Andrew Bennett (Art Department Assistant) and others.