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Glenn Ford as Prof. Andrew 'Andy' Patterson |
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Rosemary Forsyth as Vivian Masters Patterson |
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Dean Jagger as Chad Harmon |
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Maurice Evans as Harry Masters |
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Will Geer as Mike Patterson |
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Eduard Franz as Dr. Konstantin Horvathy |
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William Conrad as Bart Harris |
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Robert Pine as Phillip Dunning |
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William Smithers as Dr. Jerry Fielder |
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Logan Field as Thaddeus Burns |
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Dabney Coleman as Agent Shepard |
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Scott Graham as Weber |
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James McEachin as Police Detective |
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Robert Clarke as Dr. Louis Bauier (uncredited) |
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Lisabeth Hush as Betty Fielder (uncredited) |
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Mark Roberts as DA Avery Hazelton (uncredited) |
| Writing | David Karp | Writer |
| Production | David Karp | Producer |
| Directing | Paul Wendkos | Director |
| Directing | Kurt Neumann | Assistant Director |
| Sound | Morton Stevens | Music Supervisor |
| Art | William Craig Smith | Art Direction |
| Costume & Make-Up | Constance Edney | Costume Design |
| Costume & Make-Up | Lou LaCava | Makeup Artist |
| Production | Edward O. Denault | Production Manager |
| Sound | Jerry Kosloff | Sound Mixer |
| Editing | Carroll Sax | Editor |
| Camera | Robert B. Hauser | Director of Photography |
| Costume & Make-Up | Gale McGarry | Hairstylist |
| Production | Hugh Benson | Executive Producer |
| Production | Hoyt Bowers | Casting |
| Costume & Make-Up | Richard Egan | Costume Design |
| Sound | Jerry Goldsmith | Original Music Composer |
| Art | Ray Molyneaux | Set Decoration |
| Production | Michael S. Glick | Unit Production Manager |
