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Simon Oates as Dr. Joe Burke |
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Zena Marshall as Sandy Lund |
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Charles Hawtrey as Joshua Yellowlees |
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Patricia Hayes as Mrs. Jones |
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Stanley Meadows as Ben Keller |
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Max Adrian as Dr. Henry Shore |
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Frank Barry as Burke (as a child) |
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Leonard Cracknell as Nick |
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André Maranne as Gendarme |
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Frank Forsyth as Uncle |
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Robert Jewell as Robot Operator |
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Richard Carpenter as Danny |
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Graham Corrit as |
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Stephen Follett as |
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Eric Kent as |
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Nigel Kingsley as |
| Writing | John Brunner | Writer |
| Writing | Murray Leinster | Novel |
| Directing | Montgomery Tully | Director |
| Production | Max Rosenberg | Producer |
| Production | Milton Subotsky | Producer |
| Camera | Geoffrey Faithfull | Director of Photography |
| Art | Scott Slimon | Art Direction |
| Art | William Constable | Production Design |
| Sound | Stanley Smith | Sound Editor |
| Camera | Len Harris | Camera Operator |
| Costume & Make-Up | Olive Mills | Hairstylist |
| Costume & Make-Up | Dorrie Hamilton | Makeup Artist |
| Editing | Peter Musgrave | Editor |
| Directing | Tom Walls Jr. | Assistant Director |
| Sound | Laurie Clarkson | Sound Recordist |
| Sound | Elisabeth Lutyens | Original Music Composer |
