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Yoko Tani as Lin Siyan |
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Guy Doleman as Wayne Douglas |
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Ewan Roberts as Det. Insp. Simons |
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Mark Eden as Richard Webb |
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Anthony Booth as Buddy Forrester |
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John Forbes-Robertson as |
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Norma Parnell as Day Nurse |
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Helen Lindsay as Helen Douglas |
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Noel Johnson as Charles Briars |
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Denis Holmes as Det. Sgt. Rigby |
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John Forgeham as Adrian Marlowe |
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Virginia Wetherell as Karen |
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Yvette Wyatt as Pam |
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Norman Scace as Dr. Ambrose |
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Brian Haines as Surgeon |
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Earl Green as Peter |
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Neil Wilson as Security Officer |
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Guy Standeven as Counterhand |
| Directing | Gerard Glaister | Director |
| Production | Jack Greenwood | Producer |
| Production | Ronnie Curtis | Casting Director |
| Sound | Bernard Ebbinghouse | Original Music Composer |
| Writing | John Roddick | Screenplay |
| Writing | Edgar Wallace | Original Story |
| Camera | James Wilson | Director of Photography |
| Editing | Derek Holding | Editor |
| Art | Scott MacGregor | Art Direction |
| Costume & Make-Up | George Claff | Makeup Artist |
| Costume & Make-Up | Pat McDermott | Hairdresser |
| Production | Ron Fry | Production Manager |
| Directing | Ted Lewis | Assistant Director |
| Sound | Ronald Abbott | Sound Recordist |
| Sound | Brian Blamey | Sound Editor |
| Sound | Sidney Rider | Sound Recordist |
| Camera | Peter Allwork | Camera Operator |