Richard Harrison

Steve Norton

Alida Chelli

Ulla Helger

Luis Dávila

Gustav

Diana Lorys

Huguette

Rosalba Neri

Margot

Audrey McDonald

Mrs. Van der Hoven

Alberto Plebani

Van der Hoven

José Marco

Larry Brooks

Ángel Menéndez

Yacht Captain

Goffredo Unger

Kurt

Ferruccio Viotti

Lester Barrow

Attilio Dottesio

Il maggiore Hernandez

Giovanni Brusadori

(uncredited)