 | Terry Kinney als Steve Malone |
 | Meg Tilly als Carol Malone |
 | Gabrielle Anwar als Marti Malone |
 | Reilly Murphy als Andy Malone |
 | Billy Wirth als Tim Young |
 | Christine Elise als Jenn Platt |
 | R. Lee Ermey als General Platt |
 | Kathleen Doyle als Mrs. Platt |
 | Forest Whitaker als Major Collins |
 | G. Elvis Phillips als Pete |
| Stanley Small als Platt's Aide |
 | Tonea Stewart als Teacher |
| Keith Smith als Soldier Gas Station |
| Winston E. Grant als Gas Attendant |
 | Phil Neilson als MP Gate Captain |
| Timothy P. Brown als MP #1 |
| Thurman L. Combs als MP #2 |
| Sylvia Small als Soldier #1 |
| Adrian Unveragh als Red |
| Johnny Lee Smith als Neighbor |
| Allen Perada als MP #3 |
| Candice Orsini als Medic |
| Marty Lyons als Man in Infirmary |
| Rick Kangrga als MP #4 |
| Michael Cohen als MP #5 |
| Kimberly L. Cole als Pod Soldier |
| James P. Monoghan als G.I. #1 |
| Craig Lockhart als G.I. #2 |
| Darien Taylor als Alien Woman |
 | Barney Burman als Pod Person (uncredited) |
| J.D. Walters als Marine Pilot (uncredited) |
| John Huke | Art Direction |
| Jack Finney | Novel |
| Stuart Gordon | Screenplay |
| Dennis Paoli | Screenplay |
| Nicholas St. John | Screenplay |
| Margaret Mohr | Costume Design |
| Robert H. Solo | Producer |
| Anthony Redman | Editor |
| Abel Ferrara | Director |
| Ferne Cassel | Casting |
| Joe Delia | Original Music Composer |
| Bojan Bazelli | Director of Photography |
| Peter Jamison | Production Design |
| Linda Spheeris | Set Decoration |
| Kimberly Brent | Associate Producer |
| Cydney Cornell | Hair Department Head |
| Joe Cuervo | Makeup Artist |
| Michael Jaffe | Co-Producer |
| Tonya S. Holly | Casting |
| Larry Cohen | Screenstory |
| Raymond Cistheri | Screenstory |
| Barney Burman | Special Effects Makeup Artist |
| Thomas R. Burman | Makeup Effects |
| Bari Dreiband-Burman | Makeup Effects |
| Jake Garber | Special Effects Makeup Artist |
| Brian Penikas | Special Effects Makeup Artist |
| Robert Hall | Special Effects Makeup Artist |
| Matt Marich | Other |
| Jack Clements | Unit Production Manager |
| John G. Wilson | Unit Production Manager |
| Noga Isackson | Second Assistant Director |
| David Larson | Second Second Assistant Director |
| Phil Neilson | Second Unit Director |
| Michael Neumann | Second Assistant Director |
| Drew Ann Rosenberg | First Assistant Director |
| Robert J. Wilson | First Assistant Director |
| G. A. Aguilar | Stunts |
