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Christopher Beeny as Horatio Flynn |
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Ernest Scott as Ernest Rutheford Chappell |
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Patrick Wells as Hans 'Einstein' Blotz |
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Ian Smith as Tom Chizzler |
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Anneke Wills as Alice Nightingale |
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Wendy Westcott as Mary Huxley |
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Peter Sallis as Bill - grocery merchant |
| Directing | Margaret Thomson | Director |
| Writing | Peter Blackmore | Writer |
| Writing | Don Sharp | Writer |
| Writing | Margaret Thomson | Writer |
| Directing | Denis Johnson | First Assistant Director |