 | Laura Regan als Julia Lund |
 | Marc Blucas als Paul Loomis |
 | Ethan Embry als Sam Burnside |
 | Jon Abrahams als Billy Parks |
 | Dagmara Domińczyk als Terry Alba |
 | Desiree Zurowski als Mary Parks |
 | Alexander Gould als Young Billy |
 | Mark Hildreth als Troy |
 | Jonathan Cherry als Darren |
 | Jessica Amlee als Young Julia |
 | Jay Brazeau als Dr. Booth |
 | L. Harvey Gold als Professor Crowley |
 | David Abbott als Professor Adkins |
 | Jodelle Ferland als Sarah |
 | Peter LaCroix als David Parks (as Peter Lacroix) |
 | Colin Foo als Chinese Chef |
| Tony Blain | Co-Producer |
| Robert Harmon | Director |
| Brendan Hood | Writer |
| Tom Engelman | Producer |
| Scott Kroopf | Producer |
| Ted Field | Executive Producer |
| David Linde | Executive Producer |
| Elia Cmiral | Original Music Composer |
| Rene O'Hashi | Director of Photography |
| Chris Peppe | Editor |
| Anya Colloff | Casting |
| Jennifer Fishman | Casting |
| Amy McIntyre Britt | Casting |
| Barbara Kelly | Co-Producer |
| John Mariella | Associate Producer |
| Douglas Higgins | Production Design |
| Patrick Banister | Art Direction |
| Lin MacDonald | Set Decoration |
| Karen L. Matthews | Costume Design |
| Ron Sowden | Art Department Coordinator |
| Jeremy Stanbridge | Assistant Art Director |
| Peter Grace | Construction Coordinator |
| John Beatty | Construction Foreman |
| Franklin Leibel | Lead Painter |
| Ed McMahon | Leadman |
| Norman Cabrera | Sculptor |
| John Kobylka | Standby Painter |
| Jeremy Stanbridge | Additional Photography |
| Sean M. Harding | First Assistant Camera |
| David Crone | Steadicam Operator |
| Shane Harvey | Still Photographer |
| Pauline Heaton | Underwater Camera |
| Janice MacIsaac | Assistant Costume Designer |
| Debbie Geaghan | Costume Supervisor |
| Melina Calogiros | Hairstylist |
| Michelle Hrescak | Makeup Artist |
| Fay von Schroeder | Makeup Department Head |
| Thomas Bartke | Additional Music |
| Paul E. Moes | Carpenter |
| Emily Coutts | Craft Service |
| John Armstrong | Driver |
| Susan H. Bodine | Legal Services |
| Will Sickles | Picture Car Coordinator |
| Ben Brafman | Post Production Supervisor |
| Berj Bannayan | Software Engineer |
| Mike Larivee | Special Effects Coordinator |
| Scott J. Ateah | Stunt Coordinator |
| Duane Dickinson | Stunts |
| Ryan Steel | Transportation Captain |
| Rick McLennan | Transportation Co-Captain |
| Jake Callihoo | Transportation Coordinator |
| Barbara Kelly | Unit Production Manager |
| Michael Hansen | Unit Publicist |
| Ricardo Olivero | Color Timer |
| Amy Flint Catherwood | First Assistant Editor |
| Chris Madden | Best Boy Electric |
| Lee Riggs | Gaffer |
| Oliver Hajdu | Rigging Gaffer |
| Doug Parton | Rigging Grip |
| S. Steven Sach | Location Manager |
| Susan Stefanyshyn | Production Accountant |
| Andrea Boorman | Production Coordinator |
| Bev White | Production Manager |
| Donald D. Brown | Boom Operator |
| Matthew Friedman | Music Editor |
| Joe Rangel | Music Supervisor |
| Thomas Bartke | Orchestrator |
| Anke Bakker | Sound Designer |
| Devan Kraushar | Sound Effects Editor |
| David Husby | Sound Mixer |
| Anke Bakker | Supervising Sound Editor |
| Mike Beaulieu | Creature Design |
| Kyle Menzies | Visual Effects Supervisor |
| Andrea Dietrich | Storyboard |
| Scott Litsinger | Finance |
| Gene Radzik | Dolby Consultant |
| Mark Francis | Assistant Property Master |
| David Paul Hewitt White | Set Dresser |
| Jay Clennan | Dolly Grip |
| John Westerlaken | Key Grip |
| Jayson Rupert | Grip |
| Wes Craven | Presenter |
| Richard Coleman | First Assistant Director |
| Alexis Hinde | Second Assistant Director |
| Shelley Cox | Third Assistant Director |
| Frank Patton | Casting Assistant |
| Jay Cheetham | Assistant Sound Editor |
| Dario DiSanto | Foley Editor |
| Mike Flicker | Supervising Music Editor |
| Paul Anderson | Lead Animator |
| Wayne McLaughlin | Property Master |
| Brian Campbell | Dialogue Editor |
| Cindy L. Russell | Costume Set Supervisor |
| Sondra Durksen | Costumer |
| Sydney Silvert | First Assistant Makeup Artist |
| David Crone | Second Unit Director |
| Chris Reesor | Construction Buyer |
| Marko Lytviak | Paint Coordinator |
| Don Anderson | Property Buyer |
| Audra Neil | Set Buyer |
| Jacques Rey | Storyboard Artist |
| Robert Deschaine | ADR Mixer |
| Maureen Murphy | Foley Artist |
| Jean Tejkel | Foley Mixer |
| Carmen Lavender | Sound Assistant |
| Jacqueline Cristianini | Sound Supervisor |
| Darren English | Special Effects Assistant |
| Damian Fisher | Special Effects Technician |
| Barbara Mah | Visual Effects Production Manager |
| Leanne Buchanan | Stunt Double |
| Ron James | Stunt Driver |
| Wynne Keing | Assistant Camera |
| Royce Mattice | Best Boy Grip |
| Vanessa Andrascik | Camera Trainee |
| George Majoros | Second Assistant Camera |
| Kenneth Meisenbacher | Assistant Location Manager |
| Karen Bergen | Assistant Accountant |
| Bob Bedard | Catering |
| Andrea Brown | Extras Casting |
| Debbie Van Dusen | First Assistant Accountant |
| Kevin O'Leary | Generator Operator |
| Byron Drinkle | Playback Coordinator |
| Lian Anson | Production Assistant |
| Amy Kaufman | Production Executive |
| Crystal Dalman | Stunt Double |
| Owen Walstrom | Stunts |
| Ashlea Earl | Stunt Double |
| Patrick Tatopoulos | Creature Design |
