 | Jesse Metcalfe als Jack |
 | Kiele Sanchez als Lily |
 | Peter Stormare als Dr. Gianetti |
 | Kevin Sussman als Dave |
 | Evan Parke als Charles |
 | Olivia Munn als Nancy |
 | Carla Gallo als Vera Downing |
 | Armin Shimerman als Hawthorne |
 | Lisa Arturo als Heather |
 | Kurt Caceres als Loomis |
 | Molly Bryant als Nurse Henderson |
 | Dale Waddington als Jack's Mother |
| Rick Williamson als Psych Patient (uncredited) |
 | Mark Kelly als Policeman |
 | Sharon Schaffer als Policewoman |
| Jeff Buhler | Director |
| Jeff Buhler | Screenplay |
| Chris Gehrt | Casting Assistant |
| Chris Bender | Producer |
| Andrew Golov | Producer |
| Mason Novick | Executive Producer |
| Larry Schapiro | Producer |
| J.C. Spink | Producer |
| Michael J. Zampino | Executive Producer |
| Paul D'Amour | Original Music Composer |
| Robert Hauer | Director of Photography |
| Janice Hampton | Editor |
| Kelly Wagner | Casting |
| Talon McKenna | Production Design |
| Sid Nicholson | Art Direction |
| Steve Weems | Set Decoration |
| Molly Grundman-Gerbosi | Costume Design |
| Kristin Arrigo | Key Hair Stylist |
| Laura C. Denton | Prosthetic Designer |
| Kelly Capoccia | Special Effects Makeup Artist |
| Eun Jin Cho | Makeup Artist |
| Heather Ford | Hairstylist |
| Jamie Gruber | Makeup Artist |
| Michael Shawn McCracken | Makeup Department Head |
| Matthew W. Mungle | Other |
| Julie O'Leary | Hairstylist |
| Lufeng Qu | Makeup Department Head |
| Daniela Richardson | Makeup Artist |
| Karina Thompson | Hairstylist |
| Turner Walker | Special Effects Makeup Artist |
| Maximillian D. Day | First Assistant Director |
| Becky Chin | Second Second Assistant Director |
| Richard Gonzales | Second Assistant Director |
| Bradley Pero | Second Second Assistant Director |
| Jarid Boyce | Storyboard Artist |
| Jonathan Kombrinck | Special Effects Coordinator |
| Anne Marie Fox | Still Photographer |
| Bobby C. King | Stunt Coordinator |
| Renetta G. Amador | Script Supervisor |
| Joe May | Second Second Assistant Director |
| Jasi Cotton Lanier | Stunts |
| Kym Stys | Stunt Double |
