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Richard Basehart as Reginald 'Reggie' Wilson |
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Mary Murphy as Evelyn Stewart |
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Constance Cummings as Kay Wallace |
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Roger Livesey as Ben Case |
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Faith Brook as Lesley Wilson |
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Mervyn Johns as Ernest Chaple |
| Directing | Joseph Losey | Director |
| Writing | Howard Koch | Writer |
| Editing | Geoffrey Muller | Editor |
| Sound | Ronald Abbott | Sound Recordist |
| Sound | Derek Holding | Sound Editor |
| Production | Alec C. Snowden | Producer |
| Sound | Trevor Duncan | Music |
| Production | Tony Owen | Executive Producer |
| Costume & Make-Up | Jack Craig | Makeup Artist |
| Sound | Sidney Rider | Sound Recordist |
| Camera | Gerald Gibbs | Director of Photography |
| Art | C. Wilfred Arnold | Art Direction |
