 | Roy Scheider als Professor Lamont |
 | Lauren Woodland als Tammy |
 | Christian Harmony als Rick |
| Suzanne Bridgham als Susan |
 | Don Maloney als Owen |
| Teresa DePriest als Lydia/Evelyn |
| Brendan Murray als Abbott |
| Ricco Se als Hoskins |
| Joe Van Moyland als Charlie |
| Robert Hall als Walter Van Buren |
| Yoram Astrakhan | Cinematography |
| Michael B. Druxman | Writer |
| Michael B. Druxman | Director |
| Roger Corman | Executive Producer |
| Karen Reen | First Assistant Director |
| Maeve O'Sullivan | Second Assistant Director |
| Robert Hall | Second Unit Director |
| John Brady | Co-Producer |
| Marta M. Mobley | Producer |
| Derek Gleeson | Music |
| Brian J. Cavanaugh | Editor |
| Kevin Bocarde | Post Production Coordinator |
| Catherine Corman | Casting |
| Ciaran Purcell | Art Direction |
| Darin Bouyssou | Makeup Effects |
| Christopher Burdett | Creature Design |
| Paul James Tierney | Post Production Supervisor |
| Robert Hall | Second Unit Director |
| Triona Campbell | Property Master |
| Kristie LaFontaine | Set Dresser |
| David Kitchens | Sound Supervisor |
| Eric Reuveni | Sound Post Production Coordinator |
| Kenneth Skoglund | Sound Effects Editor |
| Ben Zarai | Supervising Sound Editor |
| Erick Geisler | Special Effects |
| Robert Hall | Makeup Effects |
| Kev McFadden | Lighting Technician |
| Conall McGarrigle | Director of Photography |
| Gannon Murphy | Gaffer |
| Kristin Murphy | Lighting Technician |
| Stephen Murphy | Clapper Loader |
| Julie Daly-Wallman | Script Supervisor |
