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Bernard Archard as Det. Inspector Verity |
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Elvi Hale as Kay Simpson |
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Paul Stassino as James Helder |
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Michael Coles as Frank Murray |
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Ann Sears as Stella Maple |
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Victor Platt as Thomas Maple |
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Patrick Jordan as Brand |
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Clifford Earl as Det. Sgt. Wentworth |
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Gerald Lawson as Old Man |
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Jean Aubrey as Gillian Murray |
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Gareth Davies as Police Constable |
| Directing | Robert Tronson | Director |
| Production | Jack Greenwood | Producer |
| Production | Jim O'Connolly | Associate Producer |
| Writing | Edgar Wallace | Original Story |
| Writing | Richard Harris | Screenplay |
| Sound | Bernard Ebbinghouse | Music |
| Camera | Bert Mason | Director of Photography |
| Editing | Robert Jordan Hill | Editor |
| Production | Ronnie Curtis | Casting Director |
| Art | Peter Mullins | Art Direction |
| Costume & Make-Up | Hilda Fox | Hairdresser |
| Costume & Make-Up | Aldo Manganaro | Makeup Artist |
| Production | Joe Levy | Production Manager |
| Directing | Ted Lewis | Assistant Director |
| Sound | Ronald Abbott | Sound Recordist |
| Sound | Brian Blamey | Sound Editor |
| Sound | Sidney Rider | Sound Recordist |
| Camera | Herbert Smith | Camera Operator |