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Emrys Jones as Frank Stewart |
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Sarah Lawson as Helen Carr |
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Patrick Barr as Brent |
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Delphi Lawrence as Yvonne |
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Kevin Stoney as Wally Lucas |
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Richard Warner as Prison Governor |
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Brian Haines as Vance |
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Philip Locke as Dave Hughes |
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Brian Wilde as Chief Warder |
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Garfield Morgan as Meredith |
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William Abney as Jock MacKay |
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Ken Wayne as Bryce |
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Katy Wild as Jean Stewart |
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Anthony Bailey as Young Heavy |
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Victor Charrington as Caretaker |
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Bee Duffell as Mrs. Thomas |
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Kevin Fitzgerald as Porter |
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Arthur Goullet as Landlord |
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John Hatton as Robbery Car Driver |
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John West as Q Car Driver |
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Vincent Harding as Q Car Driver |
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Astor Sklair as Cafe Proprietor |
| Editing | Derek Holding | Editor |
| Writing | Edgar Wallace | Novel |
| Directing | Robert Tronson | Director |
| Writing | Richard Harris | Screenplay |
| Production | Jack Greenwood | Producer |
| Sound | Bernard Ebbinghouse | Original Music Composer |
| Camera | James Wilson | Director of Photography |
| Production | Ronnie Curtis | Casting Director |
| Art | Peter Mullins | Art Direction |
| Costume & Make-Up | Bill Griffiths | Hairdresser |
| Costume & Make-Up | Michael Morris | Makeup Artist |
| Production | Ron Fry | Production Manager |
| Directing | Ted Lewis | Assistant Director |
| Sound | Brian Blamey | Sound Editor |
| Sound | Sidney Rider | Sound Recordist |
| Camera | Noel Rowland | Camera Operator |
