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Griffith Jones as Robert Ainsworth |
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Ursula Howells as Lucille Ainsworth |
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Honor Blackman as Sarah Hayward |
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Ewen Solon as Detective Inspector Marshall |
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Carl Bernard as Gilbert Morgan |
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Mary Jones as Nella Langford |
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Philip Gilbert as John Langford |
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John Van Eyssen as Clive Franklyn |
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Doris Yorke as Landlady |
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Harry Ross as Bernard Goodman |
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Robert Raikes as Detective Sgt. Berry |
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Gordon Phillott as Rigby |
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Vernon Smythe as Col. Jarvis |
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Gerda Larsen as Blondi |
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Barry Steele as Barman |
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Edwin Richfield as Porter |
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Philip Johns as Detective Sergeant (uncredited) |
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Joe Wadham as Police Driver (uncredited) |
| Directing | Peter Graham Scott | Director |
| Sound | Harry Tate | Sound |
| Writing | Pamela Barrington | Novel |
| Editing | Tom Simpson | Editor |
| Writing | Barbara S. Harper | Screenplay |
| Production | John Temple-Smith | Producer |
| Art | Thomas Goswell | Draughtsman |
| Sound | Stanley Marks | Sound Editor |
| Camera | Peter Sandford | Focus Puller |
| Production | Francis Edge | Producer |
| Art | Norman G. Arnold | Art Direction |
| Directing | Buddy Booth | Assistant Director |
| Sound | John Brommage | Boom Operator |
| Sound | Dick Smith | Sound Recordist |
| Production | Donald Wynne | Production Manager |
| Camera | Curtis Reeks | Still Photographer |
| Production | Luigi Rovere | Producer |
| Directing | Jan Saunders | Second Assistant Director |
| Camera | Walter J. Harvey | Director of Photography |
| Costume & Make-Up | Gene Beck | Makeup Artist |
| Costume & Make-Up | Jane Seymour | Hairstylist |
| Directing | Gladys Reeve | Continuity |
| Production | Trix Wilkin | Production Secretary |
| Camera | Anthony Heller | Camera Operator |
