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Fred Emney as Dr. Septimus Jankers |
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Cardew Robinson as Cardew the Cad |
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Miriam Karlin as 'The Private Eye' |
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Gabrielle Brune as Matron |
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Vera Day as Maisie |
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Aud Johansen as Mlle. Praline |
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Claude Hulbert as Mr. Winkle |
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Freddie Mills as Harry the Scar |
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Davy Kaye as Ferdy |
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Johnny Brandon as Fanshaw |
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Ronnie Corbett as Chumleigh |
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Roger Avon as Horsetrough |
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Stanley Unwin as The Guide |
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Peter Butterworth as The Potter |
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Paul Daneman as Fudge - The Porter |
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Kynaston Reeves as Mc. Tavish |
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Gerald Campion as Fatty Gilbert |
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Dino Galvani as Prof. Stromboli |
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Stuart Saunders as Station Sergeant |
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Tom Gill as Constable |
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Melvyn Hayes as Heckling Boy at Concert (uncredited) |
| Directing | Maurice Elvey | Director |
| Writing | Denis Waldock | Story |
| Editing | Robert Jordan Hill | Editor |
| Art | Norman G. Arnold | Art Direction |
| Sound | Walter R. Day | Sound Recordist |
| Production | Peter Noble | Associate Producer |
| Production | David Dent | Producer |
| Costume & Make-Up | Aldo Manganaro | Makeup Artist |
| Production | John Workman | Production Manager |
| Camera | Eric Cross | Director of Photography |
| Sound | Edwin Astley | Music |
| Camera | Herbert Smith | Camera Operator |
| Crew | Fred Emney | Additional Dialogue |
| Writing | Peter Noble | Adaptation |
| Writing | Anthony Verney | Screenplay |
| Directing | Erica Masters | Second Assistant Director |
| Directing | Eddie Pike | Assistant Director |
