Con man Dudley Jerico sets out to rob corrupt millionaire Victor Rosso of his legendary Gemini diamond, but there's another operator in town who is out to con the con.
Patrick MacneeDudley Jerico
Connie StevensSusan Gray / Claudine / Georgina
Herbert LomVictor Russo
Marty AllenWallyLeonardo PieroniAngelo
Peter YappFelipe
Bruce BoaNolan
Joanne DaintonMerle
Paul DarrowReceptionist
Jasmina HiltonMaidJune CooperFirst Stewardess (uncredited)Nancy EgertonSecond Stewardess (uncredited)Anne GodfreyElegant Lady (uncredited)Michael StevensHotel Bartender (uncredited)
Nikki Van der ZylClaudine (voice) (uncredited)
