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Monte Markham as Prof. Mark Lowell |
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Barbara Anderson as Susan Schaeffer |
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Telly Savalas as Lt. Phil Keegan |
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Tim O'Connor as Bert Hayes |
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Joseph Sirola as George Simpson |
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Lonny Chapman as Martin Binzech |
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Jim Antonio as Sgt. Ted Korel |
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Richard Erdman as Ellis |
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Valentin de Vargas as Steve Curtis |
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Elizabeth Moore as Mrs. Metcalfe |
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Robert DoQui as Andrews |
| Camera | John A. Alonzo | Director of Photography |
| Directing | Lee H. Katzin | Director |
| Editing | Ira Heymann | Editor |
| Writing | Paul Playdon | Writer |
| Production | Leonard Freeman | Producer |
| Art | Albert Heschong | Art Direction |
| Sound | Morton Stevens | Music |
| Costume & Make-Up | Stephen Lodge | Costume Supervisor |
