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Will Hay as Dr. Alec Smart |
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Gordon Harker as Faker Brown |
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Jimmy Hanley as Cyril Brown |
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Davy Burnaby as Col. Crableigh |
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Norma Varden as Lady Dorking |
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Claude Dampier as Theo P. Finch |
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Charles Farrell as Louis Brown |
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Clive Dunn as Schoolboy watching rugby (uncredited) |
| Directing | William Beaudine | Director |
| Sound | Louis Levy | Original Music Composer |
| Sound | Bretton Byrd | Original Music Composer |
| Writing | Robert Edmunds | Writer |
| Writing | Will Hay | Writer |
| Editing | Alfred Roome | Editor |
| Art | Alex Vetchinsky | Art Direction |
| Camera | Charles Van Enger | Director of Photography |
