Leonora Ruffo
Kaena
Mario Novelli
Ingegner Paolo Bardi
Roland Lesaffre
Prof. Solmi
Kirk Morris
Belsy
Gordon Mitchell
Murdu
Alfio Caltabiano
Artie
L
Leontine May
Luisa Solmi
Nando Angelini
Ingegner Morelli
G
Giovanni De Angelis
Giulio
Mirella Pamphili
(credit only)
J
John Sun
Dr. Chang
A
Antonio Ho
Chinese Secret Agent
J
John Chen
Chinese Secret Agent
Pietro Francisci
Himself (uncredited)
Renato Montalbano
The Doctor at the casualty department (uncredited)
Gianni Solaro
The Director of the Research Institute (uncredited)