 | Daniel Radcliffe als Harry Potter |
 | Rupert Grint als Ron Weasley |
 | Emma Watson als Hermione Granger |
 | Kenneth Branagh als Gilderoy Lockhart |
 | Toby Jones als Dobby (voice) |
 | Robbie Coltrane als Rubeus Hagrid |
 | Richard Harris als Albus Dumbledore |
 | Alan Rickman als Severus Snape |
 | Tom Felton als Draco Malfoy |
 | Jason Isaacs als Lucius Malfoy |
 | Shirley Henderson als Moaning Myrtle |
 | Richard Griffiths als Vernon Dursley |
 | Julie Walters als Molly Weasley |
 | Bonnie Wright als Ginny Weasley |
 | Fiona Shaw als Petunia Dursley |
 | Maggie Smith als Minerva McGonagall |
 | Warwick Davis als Filius Flitwick |
 | David Bradley als Argus Filch |
 | Sean Biggerstaff als Oliver Wood |
 | Robert Hardy als Cornelius Fudge |
 | John Cleese als Nearly Headless Nick (Sir Nicholas) |
 | Gemma Jones als Poppy Pomfrey |
 | Miriam Margolyes als Pomona Sprout |
 | Mark Williams als Arthur Weasley |
 | Harry Melling als Dudley Dursley |
 | James Phelps als Fred Weasley |
 | Oliver Phelps als George Weasley |
 | Chris Rankin als Percy Weasley |
 | Josh Herdman als Gregory Goyle |
 | Jamie Waylett als Vincent Crabbe |
 | Christian Coulson als Tom Riddle |
 | Matthew Lewis als Neville Longbottom |
 | Alfred Enoch als Dean Thomas |
 | Devon Murray als Seamus Finnigan |
 | Luke Youngblood als Lee Jordan |
 | Hugh Mitchell als Colin Creevey |
 | Edward Randell als Justin Finch-Fletchley |
 | Veronica Clifford als Mrs Mason |
 | Jim Norton als Mr Mason |
 | Tom Knight als Mr Granger |
 | Heather Bleasdale als Mrs Granger |
 | Ben Borowiecki als Angus (Diagon Boy) |
| Isabella Columbus als Girl in Bookstore |
 | Edward Tudor-Pole als Mr Borgin |
| Gemma Padley als Penelope Clearwater |
| Jenny Tarren als Aged Witch |
| Peter O'Farrell als Short Man - Daily Prophet |
 | Eleanor Columbus als Susan Bones |
 | Harry Taylor als Station Guard |
| Rochelle Douglas als Alicia Spinnet |
| Emily Dale als Katie Bell |
 | Danielle Tabor als Angelina Johnson |
 | Jamie Yeates als Marcus Flint |
| Violet Columbus als Girl with Flowers |
| Peter Taylor als Man - Moving Picture |
| Scot Fearn als Adrian Pucey |
 | David Holmes als Slyth Beater No 1 |
| David Massam als Slyth Beater No 2 |
 | Tony Christian als Slyth Beater No 3 |
| David Churchyard als Slyth Keeper |
 | Sally Mortemore als Irma Pince |
| Louis Doyle als Ernie MacMillan |
 | Charlotte Skeoch als Hannah Hufflepuff |
 | Brendan Columbus als Boy in Study Hall 1 |
| Robert Ayres als Boy in Study Hall 2 |
 | Alfred Burke als Armando Dippet |
 | Leslie Phillips als The Sorting Hat (voice) |
| Helen Stuart als Millicent Bulstrode |
 | Daisy Bates als Brunette Lady - Moving Picture |
| David Tysall als Count - Moving Picture |
| Martin Bayfield als Young Hagrid |
 | Julian Glover als Aragog (voice) |
 | Les Bubb als Reader |
 | Ana Mulvoy Ten als Student (uncredited) |
| Zoe Sugg als Slytherin Student |
| Roger Pratt | Director of Photography |
| Dennis Leonard | Supervising Sound Editor |
| Stuart Craig | Production Design |
| Stephenie McMillan | Set Decoration |
| John Williams | Original Music Composer |
| Peter Honess | Editor |
| Clare Le Vesconte | Makeup Artist |
| Chris Columbus | Director |
| Jonathan Abbas-Klahr | Special Effects |
| Sean Baker | Stunts |
| Martin Cantwell | Sound Effects Editor |
| David Heyman | Producer |
| Greg Powell | Stunt Coordinator |
| Peter Francis | Art Direction |
| Lindy Hemming | Costume Design |
| J.K. Rowling | Novel |
| Mark Bartholomew | Art Direction |
| Steve Kloves | Screenplay |
| Karen Lindsay-Stewart | Casting |
| Andrew Ackland-Snow | Art Direction |
| William Ross | Conductor |
| Nick Dudman | Makeup Designer |
| David Barron | Executive Producer |
| Michael Barnathan | Executive Producer |
| Mark Radcliffe | Executive Producer |
| Chris Columbus | Executive Producer |
| Tanya Seghatchian | Co-Producer |
| Paula DuPré Pesmen | Associate Producer |
| Paul Couch | Standby Painter |
| Marcus Williams | Scenic Artist |
| Bob Bridges | Video Assist Operator |
| Tim Burke | Visual Effects Supervisor |
| Andrea Finch | Hairstylist |
| Bianca Bezdek-Goodloe | Legal Services |
| Rosie Richardson | Special Effects Coordinator |
| Chuck Finch | Gaffer |
| June Prinz | Boom Operator |
| Randy Thom | Sound Designer |
| Greg Hyman | Visual Effects Editor |
| Mimi Abers | Digital Compositors |
| Lucinda Thomson | Art Direction |
| Joanne Cook | Art Department Assistant |
| Amanda Pettett | Construction Coordinator |
| Antoinette Perez | Line Producer |
| Jaap Buitendijk | Still Photographer |
| Richard Clarke | Technical Supervisor |
| Gary Nixon | Production Accountant |
| Celia Barnett | Researcher |
| Edward Karam | Orchestrator |
| Adam Daniel | Sound Re-Recording Mixer |
| John Richardson | Special Effects Supervisor |
| Brenda Coxon | Finance |
| Paul Spateri | Prosthetic Supervisor |
| Keith Connolly | Painter |
| Alex Rouse | Wigmaker |
| Jessie Thiele | Post Production Supervisor |
| Louisa Lytton | Stand In |
| Michelle Corney | Production Coordinator |
| Tim Caplan | I/O Supervisor |
| Ken Coles | Camera Operator |
| Robert Duncan | Digital Effects Supervisor |
| Bernard Bellew | Unit Production Manager |
| Jim Harrison | Music Editor |
| Bryn Court | Sculptor |
| Brian Estabrook | Transportation Co-Captain |
| Dave Ridout | Rigging Gaffer |
| Jodie Jackman | Art Department Coordinator |
| Tom Debenham | Sequence Supervisor |
| David Carrigan | Production Manager |
| Peter Dorme | Assistant Art Director |
| Chas Jarrett | CG Supervisor |
| Tom Brewster | Set Production Assistant |
| David Rosenbaum | Transportation Coordinator |
| Nick Daubeny | Location Manager |
| Laya Armian | Visual Effects Coordinator |
| John Deaton | First Assistant Camera |
| John Trehy | Production Controller |
| Catriona Maccann | Propmaker |
| David Hanks | Layout |
| Tim Blackham | Sound Mixer |
| David Andrews | Animation Supervisor |
| Terry Pritchard | Driver |
| Vanessa Davies | Unit Publicist |
| Peter Pedrero | Utility Stunts |
| John Ensby | Color Timer |
| Matthew D'Angibau | Loader |
| Sarah Nolte | Makeup Effects |
| Annie Penn | Script Supervisor |
| Jonathan Lucas | First Assistant Editor |
| Simon Rhodes | Scoring Mixer |
| Jeremy Pelzer | Unit Manager |
| Alf Tramontin | Steadicam Operator |
| Eithné Fennel | Hair Designer |
| Jamie Knight | Lighting Technician |
| Fiona Chilton | Visual Effects Producer |
| Steven Lawrence | Art Direction |
| David Crossman | Costume Supervisor |
| Ken Burry | Security |
| Danny Espey | Electrician |
| Paul Catling | Creature Design |
| John King | Art Direction |
| Simon Werry | Aerial Camera |
| Pat Garrett | Key Grip |
| Chris Carreras | First Assistant Director |
| Foluso Aribigbola | Assistant Sound Editor |
| Nick Lowe | ADR Editor |
| Paul Amer | 3D Artist |
| Marc Wolff | Pilot |
| Kathy Wise | Assistant Production Manager |
| Lee Clayton | Tailor |
| Simone Goodridge | Assistant Production Coordinator |
| Steve Mair | Musician |
| Stuart McAra | Digital Effects Producer |
| Steve Barnes | 2D Artist |
| Mike Cusack | CG Animator |
| Nic Hatch | Pre-Visualization Supervisor |
| Fiona Richards | Second Assistant Director |
| Peter Myles | Supervising Music Editor |
| Elie Jamaa | Visual Effects Technical Director |
| Phil Murray | Dolly Grip |
| Mo Henry | Negative Cutter |
| Derek Trigg | Foley Editor |
| Ryan Davis | Additional Sound Re-Recording Mixer |
| Louis Elman | ADR Voice Casting |
| Alastair Bullock | Draughtsman |
| Dan Grace | Wardrobe Supervisor |
| Paul Kavanagh | Lead Animator |
| Hitesh Bharadia | Matchmove Supervisor |
| Gary Gero | Animal Coordinator |
| Ethan J. Platt | Assistant Property Master |
| Dimitri Bakalov | 3D Animator |
| William Dodds | Third Assistant Director |
| Laura Dickens | Casting Assistant |
| Peter Edmonds | Costume Assistant |
| Paul Burges | Dressing Prop |
| Peter Gleaves | ADR Mixer |
| Amanda Derby | Wardrobe Assistant |
| Michael Elson | Head of Production |
| Drew Bennett | Production Assistant |
| John Weller | Senior Modeller |
| Jemma Scott-Knox-Gore | Contact Lens Technician |
| Jordan Crockett | Art Department Production Assistant |
| Lyndsay Bullock | Floor Runner |
| Darlene Forrester | Hairdresser |
| Gareth Bull | ADR Recordist |
| Charlotte Rogers | Makeup Trainee |
| Royston Willcocks | Modelling Supervisor |
| Carey Burens | Visual Effects Assistant Editor |
| Stephen Enticott | Senior Animator |
| Colin Coull | Digital Color Timer |
| James Furlong | CG Artist |
| Jim Davey | Digital Film Recording |
| Simon Stanley-Clamp | Digital Supervisor |
| Peter MacDonald | Second Unit Director |
| Mei-Ming Casino | Visual Effects Production Manager |
| Sandra Frieze | Dialogue Coach |
| Martin Asbury | Storyboard Artist |
| Anna Tennant | Special Effects Assistant |
| Emma Bendell | Assistant Accountant |
| Jenny Hawkins | Daily Wardrobe |
| Rob Burgess | Additional Third Assistant Director |
| Ronnie Durkan | Special Effects Technician |
| Jason Coop | Second Assistant Camera |
| Robin Demetriou | Catering |
| Ed Colyer | Foley Mixer |
| Dennis Leonard | Sound Supervisor |
| Jonathan Brayley | Assistant Editor |
| Rob Bliss | Concept Artist |
| R.A. Haupt | Matte Painter |
| Peter Burgis | Foley Artist |
| Amber Kirsch | Visual Effects Production Assistant |
| Vicky Bishop | Production Secretary |
| Hannah Mais | Assistant Makeup Artist |
| William Steggle | Dresser |
| Bradley Farmer | Stunt Double |
| Chyna Thomson | Assistant Camera |
| Barry Wilkinson | Property Master |
| Colin Ritchie | Dialogue Editor |
| David Appleby | Best Boy Grip |
| Jane Royle | Makeup Artist |
| Jim Mitchell | Visual Effects Supervisor |
| Nick Davis | Visual Effects Supervisor |
| Kelly Dent | Stunts |
| Felicity Walker | Stunts |
| Leila Stewart | Stunts |
| Ruth Jenkins | Stunts |
| Gary Powell | Stunts |
| David Holmes | Stunt Double |
| Tolga Kenan | Stunts |
| Christopher Minos | Animation |
| Craig Lyn | CG Artist |
| Patricia Johnson | Set Designer |
