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Patrick Macnee as Dudley Jerico |
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Connie Stevens as Susan Gray / Claudine / Georgina |
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Herbert Lom as Victor Russo |
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Marty Allen as Wally |
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Leonardo Pieroni as Angelo |
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Peter Yapp as Felipe |
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Bruce Boa as Nolan |
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Joanne Dainton as Merle |
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Paul Darrow as Receptionist |
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Jasmina Hilton as Maid |
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June Cooper as First Stewardess (uncredited) |
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Nancy Egerton as Second Stewardess (uncredited) |
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Anne Godfrey as Elegant Lady (uncredited) |
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Michael Stevens as Hotel Bartender (uncredited) |
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Nikki Van der Zyl as Claudine (voice) (uncredited) |
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Joe Wadham as Harry, Nolan's Man (uncredited) |
| Sound | Dennis Whitlock | Sound Mixer |
| Sound | A. W. Lumkin | Sound Supervisor |
| Writing | Philip Levene | Writer |
| Production | Julian Wintle | Producer |
| Camera | Tony White | Camera Operator |
| Costume & Make-Up | Laura Nightingale | Wardrobe Master |
| Art | Harry Pottle | Production Design |
| Directing | Ivor Powell | Assistant Director |
| Crew | Ivan Pulis | Stunt Double |
| Art | William Green | Construction Manager |
| Costume & Make-Up | Bunty Phillips | Makeup Artist |
| Sound | Denis Porter | Sound Recordist |
| Crew | Roy Vincente | Stunts |
| Sound | Laurie Johnson | Original Music Composer |
| Sound | A. W. Lumkin | Recording Supervision |
| Editing | Lionel Selwyn | Editor |
| Art | Harry Pottle | Art Direction |
| Sound | Alan Willis | Sound Editor |
| Production | Barry Delmaine | Associate Producer |
| Camera | Alan Hume | Director of Photography |
| Directing | Marjorie Lavelly | Continuity |
| Production | Philip Levene | Associate Producer |
| Costume & Make-Up | Bill Griffiths | Hairdresser |
| Production | Ray Frift | Production Manager |
| Sound | Laurie Johnson | Conductor |
| Writing | David T. Chantler | Story |
| Directing | Sidney Hayers | Director |