 | Adelaide Clemens als Heather Mason / Sharon Da Silva / Alessa |
 | Sean Bean als Harry Mason / Christopher Da Silva |
 | Radha Mitchell als Rose Da Silva |
 | Carrie-Anne Moss als Claudia Wolf |
 | Malcolm McDowell als Leonard Wolf |
 | Kit Harington als Vincent Carter |
 | Deborah Kara Unger als Dahlia Gillespie |
 | Martin Donovan als Douglas Cartland |
 | Erin Pitt als Young Alessa Gillespie |
 | Peter Outerbridge als Travis Grady |
 | Jefferson Brown als Detective Santini |
 | Milton Barnes als Detective Cable |
 | Rachel Sellan als Mannequin Girl |
 | Arlene Duncan als Teacher |
 | Boyd Banks als Priest |
 | Jacky Lai als Student |
 | Conrad Bergschneider als Caretaker |
| Peter Schoelier als Vagrant |
 | Heather Marks als Suki |
 | Roberto Campanella als Pyramid Head |
 | James Kirchner als Grey Man |
 | Darren Josephs als Uniformed Cop |
 | Roman Lebeau als Business Man |
 | Sergey Shpakovsky als Fry Cook |
 | Chad Camilleri als Attacker |
 | Carrie Eklund als Dark Nurse |
| Samuel Hadida | Producer |
| M.J. Bassett | Writer |
| Don Carmody | Producer |
| Hartley Gorenstein | Line Producer |
| Michele Conroy | Editor |
| Wendy Partridge | Costume Design |
| Anthony Ianni | Art Direction |
| Deirdre Bowen | Casting |
| Katie Brennan | Makeup Department Head |
| Alicia Keywan | Production Design |
| Paul Germann | Sound Effects Editor |
| Michael Innanen | Special Effects Supervisor |
| David McCallum | Supervising Sound Editor |
| Jane Tattersall | Supervising Sound Editor |
| Wojciech Zielinski | Visual Effects Supervisor |
| Steve Lucescu | Stunt Coordinator |
| Mark Lawton | Special Effects Supervisor |
| Tony Kenny | Special Effects Coordinator |
| Michael DiCarlo | Visual Effects Coordinator |
| Kevin Banks | Music Editor |
| James Bellamy | Music Editor |
| Maxime Alexandre | Director of Photography |
| Allan Cooke | Special Effects Makeup Artist |
| Sean Sansom | Special Effects Makeup Artist |
| Reg Waddell | Generator Operator |
| Tom Mayclim | Digital Intermediate Data Wrangler |
| Peter Persaud | Foley Recordist |
| A.J. Lee | Special Effects Makeup Artist |
| Danny Piva | Electrician |
| Drake Conrad | Colorist |
| Mike Borrett | Visual Effects Production Manager |
| James Hyde | ADR Recordist |
| Damon Bishop | Special Effects Makeup Artist |
| Steve Newburn | Special Effects Makeup Artist |
| Robert Doyle | First Assistant Editor |
| Brendan Carmody | Researcher |
| Lisa Burling | Script Supervisor |
| Christian Paradis | CG Supervisor |
| Tom Nagy | Senior Animator |
| Steve Baine | Foley Artist |
| Steph Carrier | Sound Re-Recording Mixer |
| Katie Brennan | Special Effects Key Makeup Artist |
| Sorin Popescu | Assistant Art Director |
| Norman O'Halloran | Electrician |
| Mathieu Reid | Color Timer |
| Dawn M. Stoliar | First Assistant Editor |
| Parag Kore | Animation |
| Kelly Noordermeer | Visual Effects Editor |
| Zach Hunter | Boom Operator |
| Glen Goodchild | Dolly Grip |
| Rafy | Still Photographer |
| Jill Purdy | ADR Editor |
| Nick Kray | ADR Mixer |
| Douglas Catty | Carpenter |
| Chris Rosewarne | Concept Artist |
| Tony Parkin | Head Carpenter |
| Kevin Lise | Assistant Property Master |
| Robert McRae | Gaffer |
| Prashant M. Padol | Animation |
| Trey Harrell | Lighting Supervisor |
| Andy Chan | Visual Effects Coordinator |
| Michael Miller | ADR Mixer |
| Vincent Arnardi | Sound Re-Recording Mixer |
| Sean Scoffield | Graphic Designer |
| Kevin Haeberlin | Leadman |
| Madeleine Stewart | Assistant Costume Designer |
| Peter Dydo | Animation |
| Wilson Cameron | Visual Effects Producer |
| Sandor Mate | Carpenter |
| Michael Carella | Camera Operator |
| Marek Krawczyk | Electrician |
| Jane Rogers | Extras Casting |
| Mehta Apul | Animation |
| Hanung Lee | Animation |
| Steven Kostanski | Special Effects Makeup Artist |
| Denis Perrier | Painter |
| Christopher Richards | Casting Associate |
| Motassem Younes | Digital Intermediate Editor |
| Michael Yates | Visual Effects Supervisor |
| Karola Dirnberger | Key Hair Stylist |
| Benjamin Smith | First Assistant Camera |
| John Bardswich | Digital Intermediate |
| Phillip Tellez | Construction Coordinator |
| Christopher Geggie | Property Master |
| George Venckus | Set Dresser |
| Tovah Small | Casting Assistant |
| Peter Armstrong | Digital Intermediate Producer |
| Vishal S. Bendre | CG Animator |
| Eve Brunet | Visual Effects Producer |
| Colin McLellan | ADR Recordist |
| Graham Chivers | Special Effects Makeup Artist |
| Robert Cochrane | Dolly Grip |
| Ciarán Copelin | First Assistant Camera |
| Richard Emerson | Key Grip |
| Sabine Fevre | Key Makeup Artist |
| Keith Murphy | Steadicam Operator |
| Dave Muscat | Digital Intermediate |
| V.W. Scheich | Visual Effects Producer |
| Patrick Tatopoulos | Creature Design |
| Brian Patrick | Assistant Property Master |
| Elizabeth La Rouge | Carpenter |
| Dorin Kenny | Painter |
| Milan Schere | Matte Painter |
| Sarah Barber | Visual Effects Coordinator |
| Jamie Frith | Art Department Coordinator |
| Kevin Craine | Generator Operator |
| Jonathan Matthews | Location Manager |
| Matt Philip Whelan | CG Supervisor |
| Jean-Charles Kerninon | Visual Effects Designer |
| Alan Zielonko | Boom Operator |
| Masahiro Itô | Characters |
| Laurent Hadida | Adaptation |
| M.J. Bassett | Director |
| Alicia Turner | Stunts |
| Shara Kim | Stunts |
| Liise Keeling | Stunts |
| Amanda Dyar | Stunts |
| Anna Cyzon | Stunts |
| Bernadette Couture | Stunts |
| Jeff Danna | Original Music Composer |
| Akira Yamaoka | Music |
| Keiichiro Toyama | Story |
| Victor Hadida | Executive Producer |
| Laurent Hadida | Co-Producer |
| Paul Jones | Makeup Effects Designer |
| David Evans | Sound Designer |
| David Rose | Sound Designer |
| Brent Pickett | Sound Effects Editor |
| Steve Medeiros | Sound Effects Editor |
| David Caporale | Sound Effects Editor |
| Krystin Hunter | Sound Effects Editor |
| Gina Wark | Foley Artist |
| Noel Hooper | Visual Effects Supervisor |
| Quentin Marmier | Title Designer |
| Jean-Charles Kerninon | Title Designer |
| Keiichiro Toyama | Original Story |
