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Emrys Jones as Dr. Roger Full |
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Geraldine Moffat as Angie |
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Elizabeth Weaver as Edna Flannery |
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John Woodnutt as Kelland |
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Dennis Bowen as Dr. Hemingway |
| Directing | Eric Hills | Director |
| Writing | Cyril M. Kornbluth | Original Story |
| Writing | Julian Bond | Adaptation |
| Production | Alan Bromly | Producer |
| Writing | Julian Bond | Writer |
| Writing | Cyril M. Kornbluth | Writer |
| Sound | Don Harper | Original Music Composer |
| Art | Barry Learoyd | Production Design |
| Sound | Norman Kay | Theme Song Performance |
| Writing | Roger Parkes | Script Editor |
