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Ronald Lewis as Dr. Max Harrow |
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John Gabriel as Smiffershon |
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Jane Downs as Diana Harrow |
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Richard Gale as Dr. Gordon Faulkner |
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Delena Kidd as Dr. Laura Denville |
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Moultrie Kelsall as Prof. Leach |
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George Woodbridge as Det. Sgt. Cloudby |
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Peter Bowles as Policeman |
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Blake Butler as Anderson |
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Laidlaw Dalling as Radiographer |
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Bridget McConnell as Sister |
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Maitland Moss as Head Porter |
| Writing | Leon Griffiths | Adaptation |
| Writing | John Brunner | Story |
| Production | George Spenton-Foster | Associate Producer |
| Directing | Roger Jenkins | Director |
| Production | Irene Shubik | Producer |
| Art | Ridley Scott | Production Design |
| Sound | Norman Kay | Theme Song Performance |
| Sound | Norman Kay | Original Music Composer |
