 | Karen Gillan als Kaylie Russell |
 | Brenton Thwaites als Tim Russell |
 | Katee Sackhoff als Marie Russell |
 | Rory Cochrane als Alan Russell |
 | Annalise Basso als Young Kaylie |
 | Garrett Ryan als Young Tim |
 | James Lafferty als Michael Dumont |
 | Miguel Sandoval als Dr. Shawn Graham |
 | Kate Siegel als Marisol Chavez |
 | Scott Graham als Warren |
 | Justin Gordon als Supervisor Mark |
 | Dave Levine als Robert Clancy |
| Stephanie Minter als Virginia Lasser |
| Skye L. Johnson als Mary O'Connor |
 | Courtney Bell als Auctioneer |
 | Allison Boyd als Beatrice O'Connor |
| Jamie Flanagan als Tobin Capp |
| Alexandra Beer als Marcia Wicker |
| Marc D. Evans als Oliver Jeffries |
| Toni White als Alice Carden |
 | Katie Parker als Phone Store Clerk |
| Ginger McNamara als Dinner Guest (uncredited) |
| Anne McCarthy | Casting |
| Chuck Borden | Stunt Coordinator |
| Ryan Kavanaugh | Executive Producer |
| Tucker Tooley | Executive Producer |
| Marc D. Evans | Producer |
| Trevor Macy | Producer |
| Lynn Falconer | Costume Design |
| Peter Schlessel | Executive Producer |
| Michael Fimognari | Director of Photography |
| D. Scott Lumpkin | Executive Producer |
| Jason Blum | Executive Producer |
| Chris M. Jacobson | Sound Re-Recording Mixer |
| Mike Flanagan | Screenplay |
| Mike Flanagan | Director |
| Mike Flanagan | Editor |
| Stephen Hunter Flick | Sound Designer |
| Morgan Peter Brown | Associate Producer |
| Justin Gordon | Associate Producer |
| Jason Poh | Associate Producer |
| Joe Wicker | Associate Producer |
| Michelle Marchand II | Set Decoration |
| Andrew Grush | Original Music Composer |
| Joshua Anderson | Lighting Technician |
| Russell Barnes | Production Design |
| Ricky Damazio | Transportation Coordinator |
| Jeff Howard | Screenplay |
| Kellie Roy | Casting |
| Terri De Haan | Costume Supervisor |
| John Richoux | Leadman |
| Elizabeth Boller | Art Direction |
| Staci Witt | Makeup Department Head |
| Mike Scherschel | Property Master |
| Marti D. Humphrey | Supervising Sound Editor |
| Kate Jesse | Boom Operator |
| Gary Marullo | Foley |
| Justin W. Walker | Dialogue Editor |
| Matt Daly | Visual Effects Producer |
| Bret Culp | Visual Effects Supervisor |
| Carrie Clever | Set Costumer |
| Shannon Jantz | Set Costumer |
| Dave Lawrence | Music Editor |
| Francis Robinson | Transportation Captain |
| Melinda Taksen | Script Supervisor |
| Mitch Bryars Jr. | Security |
| Letitia Hoaas | Studio Teachers |
| Richard P. Ulivella | Gaffer |
| Rachael Levine | Camera Operator |
| David Pierson | Camera Operator |
| John Estes | Still Photographer |
| Boris Cifuentes | Best Boy Electric |
| Justin T. Williams | Location Manager |
| Michael J. Luisi | Executive Producer |
| Laurie Singer | Stunt Double |
| Michael Ilitch Jr. | Executive Producer |
| Dale Armin Johnson | Executive Producer |
| Julie B. May | Executive Producer |
| Glenn Murray | Executive Producer |
| Taylor Stewart | Original Music Composer |
| Anil Kurian | Executive Producer |
