Michael Caine
— Henry
Giovanna Ralli
— Fe
Eric Portman
— Moreau
Nanette Newman
— The Girl
Vladek Sheybal
— Dr. Delgado
Emilio Rodríguez
— Police Captain
David Buck
— Salinas
Carmen Dene
— Masseuse
Geraldine Sherman
— Receptionist
Leonard Rossiter
— Fillmore
Reg Howell
— Spanish Chauffeur
John Barry
— Orchestra Conductor
Renata Tarragó
— Solo Guitarist
Carlos Pierre
— Antonio
Santiago Rivero
— Armed Guard
George Ghent
— Stresemann (uncredited)