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Phyllis Kirk as Eve Atwood |
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Dan O'Herlihy as Dermot Kinross |
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Wilfrid Hyde-White as Sir Maurice Lawes |
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Petula Clark as Janice Lawes |
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Jack Watling as Toby Lawes |
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William Franklyn as Ned Atwood |
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Margaret Withers as Lady Helena Lawes |
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Guido Lorraine as Prefect Aristide Goron |
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Jacques Cey as Busson |
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Andre Charisse as Gaston |
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Robert Raikes as Bill Morris |
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Tita Dane as Marie |
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Balbina as Prue |
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Irene Moore as Diana |
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Concepta Fennell as Peggy |
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Campbell Gray as Gendarme |
| Directing | Compton Bennett | Director |
| Writing | John Dickson Carr | Novel |
| Writing | Compton Bennett | Screenplay |
| Camera | Geoff Glover | Clapper Loader |
| Directing | June Randall | Continuity |
| Sound | Stanley Black | Original Music Composer |
| Art | John Stoll | Art Direction |
| Production | 'Freddie' Pearson | Production Manager |
| Costume & Make-Up | Jim Hydes | Makeup Artist |
| Sound | Bernard Brown | Sound Recordist |
| Costume & Make-Up | Evelyn Gibbs | Wardrobe Supervisor |
| Production | William J. Gell | Producer |
| Camera | Lionel Banes | Director of Photography |
| Sound | Stanley Black | Conductor |
| Editing | Bill Lewthwaite | Editor |
| Costume & Make-Up | Nina Broe | Hairstylist |
| Directing | Douglas Hermes | Assistant Director |
| Camera | Leo Rogers | Camera Operator |
