 | Elisabeth Harnois als Megan / Sophie |
 | Shawn Ashmore als Christian |
 | Amanda Seyfried als Zoe |
 | Hilarie Burton als Alicia |
 | Tyler Hoechlin als Nick |
 | Matt O'Leary als Mark |
 | Lisa Arnold als Mrs. Thomas |
 | R. Lee Ermey als Leonard |
 | Lyle Brocato als Partier |
 | David Dahlgren als Mr. Thomas |
| Daniel Myrick | Director |
| Cedric Nicolas-Troyan | Visual Effects Supervisor |
| M. David Mullen | Director of Photography |
| Daniel Myrick | Screenplay |
| Martin Musatov | Screenplay |
| Ethan Erwin | Screenplay |
| Carsten Myllerup | Original Film Writer |
| Rasmus Heisterberg | Original Film Writer |
| Rhys Summerhayes | Second Assistant Director |
| Jeff Galpin | Stunt Coordinator |
| Marthe Pineau | Set Decoration |
| Marcos O. Lopez | First Assistant Camera |
| Darby Newman | Second Assistant Camera |
| Kris Smith | Script Supervisor |
| Rene Defrancesch | Boom Operator |
| John T. Martin | Key Grip |
| Karen Toole-Rentrop | Makeup Department Head |
| Teresa Vest | Key Makeup Artist |
| Yolanda Mercadel | Hair Department Head |
| Betty Hamnac | Key Hair Stylist |
| Joe Walsh Jr. | On Set Dresser |
| Karin Justman | Stunts |
| Trace Cheramie | Stunts |
| Chris J. Fanguy | Utility Stunts |
| Holly O'Quin | Stunt Double |
| Russell Towery | Utility Stunts |
| Keith Morgan | Gaffer |
| David J. Barker | Special Effects |
| Louis Paul Tocchet | First Assistant Director |
| Teresa Vest | Special Effects Makeup Artist |
| Bruton Jones | Production Design |
| Mary Vernieu | Casting |
| Monika Mikkelsen | Casting |
| James D. Stern | Producer |
| Adam Del Deo | Producer |
| Mason Novick | Co-Executive Producer |
| Douglas Hansen | Executive Producer |
| Paula Fairfield | Supervising Sound Editor |
| Carla Murray | Sound Effects Editor |
| Todd Beckett | Sound Effects Editor |
