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Lionel Jeffries as Arthur Lee |
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Avice Landone as Mary Lee |
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Jack Watling as John Lee |
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Patricia Owens as Connie Lee |
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Brian Worth as Michael Collins |
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Gordon Jackson as Leonard |
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Arthur Lowe as Wilkins |
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Cyril Chamberlain as Clarkson |
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Erik Chitty as |
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Frazer Hines as Boy |
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Alastair Hunter as |
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John Pike as Boy |
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Peter Swanwick as |
| Directing | Henry Cass | Director |
| Production | Robert S. Baker | Producer |
| Crew | John Gilling | Script |
| Camera | Monty Berman | Director of Photography |
| Editing | Maurice Rootes | Editor |
| Art | John Stoll | Art Direction |
| Sound | H.C. Pearson | Sound Recordist |
| Production | Monty Berman | Producer |
