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Francine York as Dr. Lisa Wayne |
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James Brown as Col. Hank Stevens |
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Baynes Barron as Dr. John Andros |
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Russ Bender as Dr. Paul Martin |
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John Willis as TV Reporter |
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Bob Legionaire as Faith I Crewman |
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James Macklin as Gen. Mark Tilman |
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Phyllis Selznick as Earth Control Secretary |
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John Lomma as Earth Control |
| Editing | Robert S. Eisen | Editor |
| Editing | John Shouse | Editor |
| Art | Paul Sylos | Art Direction |
| Sound | Marlin Skiles | Original Music Composer |
| Production | Burt Topper | Producer |
| Camera | Robert Tobey | Director of Photography |
| Production | Leonard Katzman | Producer |
| Writing | Leonard Katzman | Writer |
| Directing | Leonard Katzman | Director |
