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Alastair Sim as Dr. Knox |
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George Cole as Dr. Walter Anderson |
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Adrienne Corri as Mary Paterson |
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Jill Bennett as Mary Belle |
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Margaret Gordon as Amelia |
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Diarmuid Kelly as Burke |
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Michael Ripper as Hare |
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Peter Halliday as Adolphus Raby |
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Frank Taylor as Paterson |
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Jefferson Clifford as Nebby |
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Doria Noar as Janet |
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Irene Sunters as Jessie Ann |
| Directing | Dennis Vance | Director |
| Writing | Harry Alan Towers | Writer |
| Writing | Denis Webb | Writer |
| Production | Harry Alan Towers | Producer |
