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Gordon Harker as Inspector Hornleigh |
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Alastair Sim as Sergeant Bingham |
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Linden Travers as Miss Angela Meadows |
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Wally Patch as Police Sergeant |
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Edward Chapman as Captain Edwin Fraser |
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Philip Leaver as Bradfield |
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Kynaston Reeves as Dr. Manners |
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John Turnbull as Chief Constable |
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Wyndham Goldie as Sir George Winbeck |
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Cyril Conway as Minor Role |
| Directing | Walter Forde | Director |
| Writing | Sidney Gilliat | Writer |
| Writing | Leonard Reginald Gribble | Novel |
| Writing | Frank Launder | Writer |
| Writing | J.O.C. Orton | Writer |
| Production | Edward Black | Producer |
| Sound | Louis Levy | Music |
| Editing | R. E. Dearing | Editor |
| Camera | Jack E. Cox | Director of Photography |
| Sound | Charles Williams | Original Music Composer |
| Writing | John P. Wynn | Characters |
