Stephen Forsyth
John Harrington
Acting
Dagmar Lassander
Helen Wood
Acting
Laura Betti
Mildred Harrington
Acting
Jesús Puente
Inspector Russell (as Jesus Puente)
Acting
Femi Benussi
Alice Norton
Acting
Antonia Mas
Louise
Acting
Luciano Pigozzi
Vences (as Alan Collin)
Acting
Gérard Tichy
Dr. Kalleway (as Gerard Tichy)
Acting
Verónica Llimerá
Betsy Wester (as Veronica Llimera)
Acting
Pasquale Fortunato
John Harrington as a Boy (as Fortunato Pascuale)
Acting
Ignasi Abadal
Jimmy Kane (as José Ignacio Abadaz)
Acting
Silvia Lienas
Vicky
Acting
Montserrat Riba Vidal
Rosy Miller (as Monserrat Riba)
Acting
Susy Andersen
Sdenka (archive footage) (uncredited)
Acting
Guido Barlocci
Unknown (uncredited)
Acting
Bruno Boschetti
Policeman (uncredited)
Acting
Elina De Witt
Model (uncredited)
Acting
Rika Dialina
Maria (archive footage) (uncredited)
Acting
Boris Karloff
Gorca (archive footage)
Acting
Glauco Onorato
Giorgio (archive footage) (uncredited)
Acting