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John Neville as Dr. Mark Davidson |
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Philip Stone as Prof. John Lancaster |
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Gabriella Licudi as Julie Davidson |
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Patrick Newell as Maj. Clarke |
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Jean Marsh as Miss Ballard |
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Warren Mitchell as Prof. Munro |
| Production | Albert Fennell | Producer |
| Writing | Rex Carlton | Writer |
| Camera | Reginald H. Wyer | Director of Photography |
| Directing | John Krish | Director |
| Editing | Tom Priestley | Editor |
| Writing | Jeffrey Stone | Idea |
| Production | Leslie Parkyn | Executive Producer |
| Art | Harry Pottle | Production Design |
| Production | Julian Wintle | Executive Producer |
| Costume & Make-Up | Trevor Crole-Rees | Makeup Artist |
| Camera | Wally Fairweather | Focus Puller |
| Sound | Edward Williams | Original Music Composer |
