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Tony Curtis as Danny Wilde |
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Roger Moore as Lord Brett Sinclair |
 |
Larry Storch as Angie |
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Prunella Ransome as Princess Alexandra |
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Gladys Cooper as Grand Duchess Ozerov |
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Gary Raymond as Sergei |
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Laurence Naismith as Judge Fulton |
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Lionel Murton as Ben |
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Kirsten Lindholm as Marissa Nave |
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John Alderson as Kyle Sandor |
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Rose Alba as Madame La Gata |
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Anna Brett as Bank Secretary |
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Joseph Fürst as Yelker |
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Cyril Shaps as Professor Ganguin |
|
Georgina Simpson as Magda |
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Arnold Ridley as Uncle Rodney |
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Anouska Hempel as Stewardess |
|
Denys Peek as Dante |
|
Timothy Parkes as Walther |
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Yuri Borienko as Nikolai |
 |
Raymond Young as Inspector Mansour |
| Directing | Roy Ward Baker | Director |
| Directing | Val Guest | Director |
| Writing | Harry W. Junkin | Writer |
| Writing | Milton S. Gelman | Writer |
