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Peter Sellers as Sir Walter Smood / Reuben J. Crouch |
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Graham Stark as Carstairs |
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Dick Emery as Pules |
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Anne Hayes as Miss Jones |
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Raymond Francis as King of Flanubria |
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Frank Hawkins as Inspector Plungegroin |
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Bryan Johnson as Other characters |
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Dickie Martyn as Other characters |
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Ray Ellington as Self |
| Directing | Charles W. Green | Director |
| Writing | Spike Milligan | Writer |
| Writing | Larry Stephens | Writer |
| Production | John H. Robertson | Producer |
| Sound | Ray Ellington | Music |
| Camera | S.D. Onions | Director of Photography |
| Editing | Bob Rymer | Editor |
| Production | Hal Wilson | Production Manager |
| Sound | John Woodwiss | Sound |