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Derek Farr as Detective Inspector Minter |
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Tony Wright as Gerry Hamilton |
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Richard Pearson as Frank Weyman |
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Freda Jackson as Mrs. Weyman |
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Patricia Mort as Elisabeth Gray |
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J.G. Devlin as Elliott |
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Clifford Earl as Sgt. Bennett |
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Denis Holmes as Fraser |
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Alan Jeayes as Gardener |
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Grace Arnold as Housekeeper |
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Trevor Reid as Bank Manager |
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Frances Bennett as Barmaid |
| Sound | Bernard Ebbinghouse | Music |
| Production | Jack Greenwood | Producer |
| Sound | Sidney Rider | Sound Recordist |
| Production | Joe Levy | Production Manager |
| Costume & Make-Up | Eileen Welch | Wardrobe Designer |
| Crew | Stuart Levy | Presenter |
| Directing | Peter Price | Assistant Director |
| Production | Jim O'Connolly | Associate Producer |
| Production | Ronnie Curtis | Casting Director |
| Sound | Roy Norman | Sound Editor |
| Costume & Make-Up | Hilda Fox | Hairdresser |
| Writing | Edgar Wallace | Novel |
| Sound | Ronald Abbott | Sound Recordist |
| Camera | Bert Mason | Director of Photography |
| Writing | Richard Harris | Screenplay |
| Art | Peter Mullins | Art Direction |
| Editing | Edward B. Jarvis | Editor |
| Costume & Make-Up | Aldo Manganaro | Makeup Artist |
| Camera | Herbert Smith | Camera Operator |
| Directing | Royston Morley | Director |
| Crew | Nat Cohen | Presenter |
| Directing | Marjorie Owens | Continuity |
