 | William Mapother als Dr. Henry West |
 | Rya Kihlstedt als Judith Winstead |
 | Sharon Maughan als Susan Gorman |
 | Anne Betancourt als Joanne Breault |
 | John Rubinstein als Marcus Wheeler |
 | Suzanne Jamieson als Cathleen West |
 | Gerald McCullouch als Steven West |
 | Brian Chenoweth als Father Donnelly |
 | Joe Guarneri als Sergeant Parella |
 | Gage Maverik als Government Researcher |
 | Erich Lane als Kenneth |
 | Harry Groener als Lawrence Henault |
 | Lou Beatty Jr. als Darrell Price |
 | Ivar Brogger als Therapist |
 | Rob Kerkovich als Agent Barnes |
 | Anton Narinskiy als Private Turcott |
 | Shannon Wilcox als Patricia West |
 | Chris Sparling als Corporal Gorder |
| Chris Sparling | Writer |
| Chris Sparling | Director |
| Katie Kilkenny | Makeup Department Head |
| Peter Safran | Producer |
| Alex Vendler | Director of Photography |
| Natalia Safran | Producer |
| James Cotten | Digital Intermediate |
| Vivian Quaid | Property Master |
| Lauren Bass | Casting |
| Maressa Richtmyer | Costume Design |
| Jordan Bass | Casting |
| Chris Polczinski | Sound Editor |
| David Hayball | Gaffer |
| Tom Putnam | Still Photographer |
| Richard N. McGuire | Production Design |
| Nathalie Neurath | Art Direction |
| Evan Schneider | Visual Effects |
| Víctor Reyes | Music |
| Sam Bauer | Editor |
| Chris Sparling | Producer |
| Mario Aguja | Script Supervisor |
| Jenna Huffman | Costume Supervisor |
| Cecilia Cardwell | Studio Teachers |
| Michael Rodriguez Duenas | Location Manager |
| Kelly Capoccia | Hairstylist |
| Christy Wyatt | Studio Teachers |
| Matt Howard | Sound Editor |
| Ryan Senecal | Special Effects Coordinator |
| Gregg Thompson | Dolly Grip |
| Blas Kisic | Boom Operator |
| Kellee Hiatt | Second Assistant Camera |
| Chad Buning | Electrician |
| Lee Hultman | Digital Intermediate Colorist |
| Anthony Yamamoto | Electrician |
| Evan Schneider | Digital Intermediate Editor |
| Andrew Kuepper | First Assistant Camera |
| Jason Mayoh | Storyboard Artist |
| Jeffery Alan Jones | Supervising Sound Editor |
| Suzanne Dean | Production Coordinator |
| Dan Clifton | Production Manager |
| Jeffery Alan Jones | Sound Designer |
| Nathalie Neurath | Set Decoration |
| Ian J. Putnam | First Assistant Director |
| Sabi Tulok | Sound Mixer |
| David Klassen | Rigging Gaffer |
| Ben Scott | Stunt Coordinator |
