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Edmund Lowe as Inspector Barrabal |
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Sebastian Shaw as Frank Sutton |
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Ann Todd as Carol Stedman |
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Tamara Desni as Tamara |
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Robert Newton as Larry Graeme |
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Allan Jeayes as Inspector Elford |
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Alastair Sim as Joshua Collie |
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Stewart Rome as Police Superintendent Marshall |
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Mabel Terry-Lewis as Mrs. Stedman |
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Gordon McLeod as Mr. Field |
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Syd Crossley as Minor Role |
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Alf Goddard as Police Sgt. Hawkins |
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Danny Green as Safecracker |
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Fred Groves as Martin |
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Michael Rennie as Medical Examiner |
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Bill Shine as Alfie |
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Ben Williams as Dale |
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Philip Ray as Safecracker (uncredited) |
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Noel Dainton as Police Inspector (uncredited) |
| Directing | William K. Howard | Director |
| Writing | Ted Berkman | Screenplay |
| Writing | Bryan Edgar Wallace | Scenario Writer |
| Writing | Edgar Wallace | Novel |
| Sound | Miklós Rózsa | Original Music Composer |
| Camera | Georges Périnal | Director of Photography |
| Editing | Russell Lloyd | Editor |
| Production | David B. Cunynghame | Production Manager |
| Directing | Wilfred O'Kelly | Assistant Director |
| Art | Vincent Korda | Set Designer |
| Sound | A.W. Watkins | Sound |
