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Ralph Richardson as David Preston |
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Margaret Leighton as Janet Preston |
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Campbell Singer as Inspector Hemingway |
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Jack Hawkins as Dr. Sparling |
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Michael Shepley as Major Watson |
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Frederick Piper as Solicitor Petheridge |
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Meriel Forbes as Peggy Dobson |
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Margaret Withers as Mrs. Watson |
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Gerald Case as Sergeant Evans |
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Diana Beaumont as Ellen |
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Archie Duncan as Station Sergeant (uncredited) |
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Johnnie Schofield as Joe Dobson (uncredited) |
| Directing | Ralph Richardson | Director |
| Writing | R.C. Sherriff | Theatre Play |
| Writing | Anatole de Grunwald | Screenplay |
| Production | Maurice Cowan | Producer |
| Camera | Jack Hildyard | Director of Photography |
| Camera | Edward Scaife | Director of Photography |
| Editing | Bert Bates | Editor |
| Directing | Guy Hamilton | Assistant Director |
| Sound | Malcolm Arnold | Original Music Composer |
| Art | Vincent Korda | Set Decoration |
