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Gene Barry as Michael London |
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John Saxon as Cheval |
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Senta Berger as Mila Darvos |
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Tom Simcox as Leland McCord |
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Mary Ann Mobley as Peggy Coopersmith |
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Werner Peters as Dr. Lenz |
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Donald Woods as Shepherd |
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Jack Kruschen as Capt. Granicek |
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John Marley as Kapel |
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Philip Bourneuf as Claude |
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Norma Varden as Englishwoman |
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Émile Genest as Henri the Conductor |
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Moustache as Gustav |
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Allen Jaffe as Dr. Lenz's Henchman |
| Directing | Richard Irving | Director |
| Camera | Benjamin H. Kline | Director of Photography |
| Sound | Oliver Nelson | Music |
| Editing | Richard G. Wray | Editor |
| Art | John J. Lloyd | Art Direction |
| Art | John McCarthy Jr. | Set Decoration |
| Art | Perry Murdock | Set Decoration |
| Costume & Make-Up | Grady Hunt | Costume Design |
| Writing | Richard Levinson | Writer |
| Writing | William Link | Writer |
| Production | Richard Irving | Producer |
