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Will Hay as Dr. Benjamin Twist |
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Martita Hunt as Lady Bogshott |
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Fewlass Llewellyn as The Dean |
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Mark Daly as Arty Jones |
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C. Denier Warren as Minister of Education |
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Will Hay Jr. as Clarence |
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Basil McGrail as Watson |
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Jacques Brown as Manager |
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Lewis Broughton as Dr. Simpson (uncredited) |
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Richard Todd as Extra in crowd scene (uncredited) |
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Clive Dunn as Minor Role (uncredited) |
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Lilli Palmer as Yvette |
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Graham Moffatt as Albert Brown |
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Peter Gawthorne as Col. Willougby-Gore |
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Charles Hawtrey as Septimus |
| Directing | Marcel Varnel | Director |
| Writing | Leslie Arliss | Writer |
| Writing | Marriott Edgar | Writer |
| Writing | Val Guest | Writer |
| Writing | Anthony Kimmins | Original Story |
| Editing | Alfred Roome | Editor |
