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Stephen Boyd as Vic Brennan |
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Juliette Gréco as Marie |
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David Wayne as Samuel Brennan |
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Gregory Ratoff as Kaltenberg |
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Sybil Thorndike as Aunt Cathleen |
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Fernand Ledoux as Customs Official |
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Marie Kean as Cynthia |
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Harold Goldblatt as The Priest |
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Maureen O'Dea as Margaret Brennan |
| Production | Darryl F. Zanuck | Producer |
| Directing | Elmo Williams | Director |
| Camera | William C. Mellor | Director of Photography |
| Sound | Maurice Jarre | Music |
| Writing | Irwin Shaw | Writer |
| Directing | Richard Fleischer | Director |
| Costume & Make-Up | Monique Plotin | Costume Design |
| Sound | Leon Birnbaum | Supervising Sound Editor |
| Art | Jean d'Eaubonne | Art Direction |
| Editing | Roger Dwyre | Editor |
