Trevor Howard
— James Prothero
Elsa Martinelli
— Manuela Hunt
Pedro Armendáriz
— Mario Constanza
Donald Pleasence
— Evans
Jack MacGowran
— Tommy
Leslie Weston
— Bleloch
Warren Mitchell
— Moss
Christopher Lee
— Voice (voice)
Roger Delgado
— Stranger
Harcourt Curaçao
— Wellington Jones
Barry Lowe
— Murphy
Juan Carolilla
— Official
John Rae
— Ferguson
Harold Kasket
— Pereira
Max Butterfield
— Bliss
Andy Ho
— Cook
Peter Illing
— Agent
Armand Guinle
— Patron
Michael Peake
— Coca-Cola Man