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James Mason as Richard Francis Heritage |
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Joyce Howard as Laura Verity |
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Tom Walls as Christopher Child |
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Phyllis Stanley as Lily Bernard |
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Edward Rigby as Mansel |
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Ronald Ward as Carter |
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David Farrar as Commander Lippinscott |
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Karl Stepanek as Riccardo |
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Betty Warren as Fay |
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Walter Crisham as Charlie |
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Jeanne De Casalis as Lady with Dog |
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Patricia Medina as Mary, Manicurist (as Pat Medina) |
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George Robey as Pawnbroker |
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Ronald Chesney as Max - Mouth Harmonica Player |
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Peggy Dexter as Bobby |
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Finlay Currie as Merchant Captain |
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Brefni O'Rorke as Detective Inspector Burrows |
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Eric Mason as Benson - Illusionist |
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Anthony Holles as Hotel Hairdresser |
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Ian Fleming as |
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Kynaston Reeves as Naval Officer in Charge of Court Martial |
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Herbert Lomas as Van Driver |
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Percy Walsh as Police Sergeant |
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Terence de Marney as Code Expert |
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Elizabeth Flatau as |
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Charles Victor as Pub Owner |
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Robert Sansom as Petty Officer Bill Grant |
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Alvar Liddell as Boothby - Radio Announcer |
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Anthony Dawson as 2nd Code Expert |
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Alf Goddard as One of Mansel's Tough Friends (uncredited) |
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David Keir as Henry (uncredited) |
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Jack Melford as Defence Lawyer at Court Martial (uncredited) |
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Hay Petrie as Waiter (uncredited) |
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Leonard Sharp as Bus Conductor (uncredited) |
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Dennis Wyndham as George the Barman (uncredited) |
| Directing | Karel Lamač | Director |
| Writing | Anthony Gilbert | Novel |
| Writing | Miles Malleson | Writer |
