Lang Jeffries
George Collins
Aurora de Alba
Olga
Rafael Bardem
Professor Calvert
Eleonora Bianchi
Gloria Fernán Osuna
Wladimiro Tuicovich
Ángel Jordán
Moa Tahi
Joe Kamel
Nando Angelini
Gianni Solaro
C.I.A. Manager
Aldo Bonamano
Andrea Scandurra
Rocco Lerro
A lab guardian (uncredited)
