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Brinke Stevens as Dr. Leslie Morgan |
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Tim Abell as McQueen |
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Ted Monte as Milo Tyrrell |
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J.J. North as Carla Ferguson |
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Peter Spellos as Sergeant Frank Blaine |
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John Blyth Barrymore as Dr. Paul Hamilton |
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Bob Bragg as Pike |
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Nikki Fritz as Susan |
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Robert Quarry as Dr. Farrell (as Robert Connell) |
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Christopher Ray as Hybrid |
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Michelle Bauer as Pin Up (uncredited) |
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Fred Olen Ray as Dennis (photo) (uncredited) |
| Directing | Fred Olen Ray | Director |
| Writing | Sean O'Bannon | Writer |
| Production | Fred Olen Ray | Producer |
| Sound | Jeffrey Walton | Original Music Composer |
| Production | Jim Wynorski | Executive Producer |
| Camera | James Lawrence Spencer | Director of Photography |
| Editing | Daniel H. Holland | Editor |
| Art | Helen Harwell | Production Design |
| Directing | Christopher Ray | Second Assistant Director |
