George Collins
Lang Jeffries
Olga
Aurora de Alba
C.I.A. Manager
Gianni Solaro
Aldo Bonamano
Andrea Scandurra
A lab guardian (uncredited)
Rocco Lerro
Professor Calvert
Rafael Bardem
Eleonora Bianchi
Gloria Fernán Osuna
Wladimiro Tuicovich
Ángel Jordán
Moa Tahi
Joe Kamel
Nando Angelini
Director
Tanio Boccia
Writer
Music
Piero Umiliani
Alberto De Rossi
Mario Moroni
H. S. Valdés
Fernando Vitali
Director of Photography
Ricardo Torres
Editor
Ángel Serrano
Production Design
Saverio D'Eugenio
Set Decoration
Nicola Tamburo
Costume Design
Giorgio Desideri
Hairstylist
Antonietta Caputo
Emilia Fernández Cid
Makeup Artist
Duilio Giustini
Production Manager
Paolo Prestano
General Manager
Luigi Rotolo
Assistant Director
Mario Casalini
Ángel Falquina
Ángel Forqué
Sound
Armando Loffredi
Luis Rodríguez
Special Effects
Giovanni Stacchini