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Marilyn Hanold as Princess Marcuzan |
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James Karen as Dr. Steele |
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Lou Cutell as Dr. Nadir |
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Nancy Marshall as Karen Grant |
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David Kerman as General Bowens |
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Robert Reilly as Col. Frank Saunders / Frankenstein |
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Robert Alan Browne as Martian Crewmember (uncredited) |
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Robert Fields as Reporter (uncredited) |
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Bruce Glover as Martian Crewmember / The Monster (uncredited) |
| Directing | Robert Gaffney | Director |
| Production | Robert McCarty | Producer |
| Camera | Saul Midwall | Director of Photography |
| Editing | Lawrence C. Keating | Editor |
| Costume & Make-Up | Anna Hill Johnstone | Costume Design |
| Costume & Make-Up | John Alese | Makeup Artist |
| Sound | Maurice Rosenblum | Sound Director |
| Writing | George Garrett | Story |
| Production | Stanley P. Darer | Associate Producer |
| Production | Alan V. Iselin | Executive Producer |
