Cast
- Yul Brynner as Nico March
- Mitzi Gaynor as Gabby Rogers
- Noël Coward as King Pavel II
- Eric Pohlmann as Chief of Police Stefan Miralis
- George Coulouris as Dr. Hugo Panzer
- Guy Deghy as Tibor Smolny
- Warren Mitchell as Klimatis
- Lyndon Brook as Stavrin
- Alf Dean as Igor Trofim
- Jack Armstrong as Casino Patron
Crew
- Stanley Donen · Director
- Harry Kurnitz · Writer
- Art Buchwald · Writer
- Stanley Donen · Producer
- Christopher Challis · Cinematographer
- Jim Clark · Editor
- Donald M. Ashton · Production designer