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Julie London as Mary Loring |
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Anthony Steel as Mark Loring |
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Basil Sydney as Sir John Loring |
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Donald Houston as Mr. Jacobus |
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Anton Diffring as Carl Dieter |
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Andrew Cruickshank as Dr. Cameron |
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Frank Thring as Mr. Stanley |
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Conrad Phillips as Mario |
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Kynaston Reeves as Judge |
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Arthur Gomez as Spanish Doctor |
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Georgina Cookson as Mrs. Duncan |
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Richard Caldicot as Mr. Duncan |
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Rodney Burke as 2nd Barrister |
| Directing | Don Chaffey | Director |
| Writing | Anne Edwards | Writer |
| Writing | Denis Freeman | Writer |
| Production | Victor Lyndon | Producer |
| Production | Raymond Stross | Producer |
| Sound | Philip Green | Music |
| Editing | Peter Tanner | Editor |
| Art | John Stoll | Art Direction |
| Costume & Make-Up | Harold Fletcher | Makeup Artist |
| Costume & Make-Up | Pearl Tipaldi | Hairdresser |
| Production | Clifton Brandon | Production Manager |
| Directing | Kim Mills | Assistant Director |
| Crew | Alan Evans | Scenic Artist |
| Sound | Roy Baker | Sound Editor |
| Sound | Cyril Collick | Sound Recordist |
| Camera | Ray Sturgess | Camera Operator |
| Costume & Make-Up | Kathleen Moore | Wardrobe Master |
| Directing | Jane Buck | Continuity |
| Crew | Raymond Stross | Presenter |
| Camera | Stephen Dade | Director of Photography |
