 | Melinda Clarke als Julie Walker |
 | J. Trevor Edmond als Curt Reynolds |
 | Kent McCord als Col. John Reynolds |
 | Sarah Douglas als Lt. Col. Sinclair |
 | James T. Callahan als Col. Peck |
 | Basil Wallace als Riverman |
 | Mike Moroff als Santos |
 | Julian Scott Urena als Mogo |
 | Pía Reyes als Alicia |
 | Sal Lopez als Felipe |
 | Dana Lee als Store Owner |
 | Jill Andre als Dr. Beers |
 | David Wells als Laboratory Technician |
 | Anthony Hickox als Dr. Hickox |
 | Brian Peck als Ballistics Technician |
| Gary Schmoeller als Base Captain |
 | Michael Deak als Cop #1 |
| Clarence Epperson als Cadaver |
| Gerry Lively als Quartermaster (uncredited) |
| Brian Yuzna | Director |
| Christopher Roth | Editor |
| John Penney | Writer |
| Brian Yuzna | Producer |
| Gerry Lively | Director of Photography |
| Barry Goldberg | Original Music Composer |
| Gary Schmoeller | Producer |
| Aram Allan | Art Direction |
| Anton Tremblay | Production Design |
| Kevin Brennan | Special Effects Makeup Artist |
| Steve Johnson | Special Effects Makeup Artist |
| Christopher Allen Nelson | Special Effects Makeup Artist |
| Timothy Ralston | Special Effects Makeup Artist |
| Wayne Toth | Special Effects Makeup Artist |
| Lisa Buono | Key Hair Stylist |
| Lisa Buono | Key Makeup Artist |
| Silvina Knight | Hairstylist |
| Silvina Knight | Makeup Artist |
| Roger Burlage | Executive Producer |
| Tom Fox | Producer |
| Andrew Hersh | Co-Producer |
| Lawrence Steven Meyers | Executive Producer |
| John Penney | Associate Producer |
| Jeffery Passero | Casting |
| Greg Bartkus | Set Decoration |
| Jananicole Mincer | Costume Design |
| Gary Paul | Stunt Coordinator |
| Mildred A. Novak | Stunts |
| Denise Lynne Roberts | Stunts |
| Kurt D. Lott | Stunts |
| David Hugghins | Stunts |
| Scott Rogers | Stunts |
| David Tripet | Executive In Charge Of Production |
| Cami Winikoff | Production Supervisor |
| Conte Mark Matal | Second Assistant Director |
| Christopher Landry | Second Second Assistant Director |
| Thomas C. Rainone | Second Unit Director |
| Tom Milo | First Assistant Director |
| Robert W. Glass Jr. | Sound Re-Recording Mixer |
| David Lewis Yewdall | Supervising Sound Editor |
| Gail Clark Burch | ADR Supervisor |
| Robert Knouse | Second Unit Director of Photography |
| Eric H. Lasher | Still Photographer |
| Adam Santelli | Gaffer |
| Stacey A. Foiles | Sound Effects |
| Geoffrey Patterson | Sound Mixer |
| Gaston Biraben | Sound Effects |
| Richard D. Rogers | Sound Re-Recording Mixer |
| James Seltenreich | Sound Effects |
| Chris Robbins | Special Effects Makeup Artist |
| Thomas C. Rainone | Special Effects |
| Monty L. Simons | Stunts |
| Russ Brandt | Camera Operator |
| Dale Robinette | Still Photographer |
| Jerry Watson | Second Unit Director of Photography |
| Steve Johnson | Special Effects |
| Timothy Ralston | Special Effects |
| Clarissa Troop | Production Coordinator |
| Keith H. Sauter | Assistant Editor |
| Ray Morfino | Color Timer |
| Jordan Thau | Assistant Editor |
| Douglas Crise | Assistant Editor |
| Arthur Scipio Africano | Second Assistant Camera |
| Michael Martino | First Assistant Camera |
| Steven Buhai | Additional Second Assistant Director |
| Gary Schmoeller | Additional Second Assistant Director |
| Russell D. Markowitz | Production Manager |
