Patrick Macnee
— Dudley Jerico
Connie Stevens
— Susan Gray / Claudine / Georgina
Herbert Lom
— Victor Russo
Marty Allen
— Wally
Leonardo Pieroni
— Angelo
Peter Yapp
— Felipe
Bruce Boa
— Nolan
Joanne Dainton
— Merle
Paul Darrow
— Receptionist
Jasmina Hilton
— Maid
June Cooper
— First Stewardess (uncredited)
Nancy Egerton
— Second Stewardess (uncredited)
Anne Godfrey
— Elegant Lady (uncredited)
Michael Stevens
— Hotel Bartender (uncredited)
Nikki Van der Zyl
— Claudine (voice) (uncredited)
Joe Wadham
— Harry, Nolan's Man (uncredited)