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Robert Wagner as Tony Petrakis |
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Terry Moore as Gwyneth Rhys |
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Gilbert Roland as Mike Petrakis |
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J. Carrol Naish as Socrates Houlis |
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Richard Boone as Thomas Rhys |
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Angela Clarke as Mama Petrakis |
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Peter Graves as Arnold Dix |
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Jay Novello as Sinan |
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Jacques Aubuchon as Demetrios Sofotes |
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Gloria Gordon as Penny Petrakis |
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Harry Carey, Jr. as Griff Rhys |
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Rock Hudson as Narrator (uncredited) |
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Jack English as Doctor (uncredited) |
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William Johnstone as Crewman of 'Snapper' (uncredited) |
| Writing | A.I. Bezzerides | Writer |
| Production | Robert Bassler | Producer |
| Camera | Edward Cronjager | Director of Photography |
| Editing | William Reynolds | Editor |
| Directing | Robert D. Webb | Director |
| Art | Fred J. Rode | Set Decoration |
| Production | Darryl F. Zanuck | Executive Producer |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Art | Lyle R. Wheeler | Art Direction |
| Costume & Make-Up | Dorothy Jeakins | Costume Design |
| Art | George Patrick | Art Direction |
| Sound | Bernard Herrmann | Original Music Composer |
