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Ed Nelson as Dr. Paul Kettering |
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Joanna Lee as Alice Summers |
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Cornelius Keefe as Senator Walter K. Powers |
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Alan Jay Factor as Glenn Cameron |
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Jody Fair as Elaine Cameron |
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David Hughes as Dr. Wyler |
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Robert Ball as Dan Walker |
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Phil Posner as Sheriff |
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Orville Sherman as Mayor Cameron |
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Henry Randolph as Telegrapher |
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Hampton Fancher as Zombie (uncredited) |
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Leonard Nimoy as Professor Cole |
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Doug Banks as Doctor |
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Saul Bronson as Prof. Helsingman |
| Directing | Bruno VeSota | Director |
| Writing | Gordon Urquhart | Screenplay |
| Production | Stanley Bickman | Associate Producer |
| Production | Ed Nelson | Producer |
| Art | Burt Shonberg | Art Direction |
| Costume & Make-Up | Alan Trumble | Makeup Artist |
| Camera | Lawrence Raimond | Director of Photography |
| Editing | Carlo Lodato | Editor |
| Production | Roger Corman | Executive Producer |
| Production | F. Amos Powell | Production Manager |
| Directing | Mike Murphy | Assistant Director |
| Sound | James Fullerton | Sound |
| Sound | Tom Jonson | Original Music Composer |