Characters played by Stephen Forsyth
John Harrington
Characters played by Dagmar Lassander
Helen Wood
Characters played by Laura Betti
Mildred Harrington
Characters played by Jesús Puente
Inspector Russell
Characters played by Femi Benussi
Alice Norton
Characters played by Antonia Mas
Louise
Characters played by Luciano Pigozzi
Vences
Characters played by Gérard Tichy
Dr. Kalleway
Characters played by Verónica Llimerá
Betsy Wester
Characters played by Pasquale Fortunato
John Harrington as a Boy
Characters played by Ignasi Abadal
Jimmy Kane
Characters played by Silvia Lienas
Vicky
Characters played by Montserrat Riba Vidal
Rosy Miller
Characters played by Susy Andersen
Sdenka
Characters played by Guido Barlocci
Unknown
Characters played by Bruno Boschetti
Policeman
Characters played by Elina De Witt
Model
Characters played by Rika Dialyna
Maria
Characters played by Boris Karloff
Gorca
Characters played by Glauco Onorato
Giorgio