Il rosso segno della follia

Stephen Forsyth

John Harrington

Dagmar Lassander

Helen Wood

Laura Betti

Mildred Harrington

Jesús Puente

Inspector Russell (as Jesus Puente)

Femi Benussi

Alice Norton

?

Antonia Mas

Louise

Luciano Pigozzi

Vences (as Alan Collin)

Gérard Tichy

Dr. Kalleway (as Gerard Tichy)

Verónica Llimerá

Betsy Wester (as Veronica Llimera)

?

Pasquale Fortunato

John Harrington as a Boy (as Fortunato Pascuale)

Ignasi Abadal

Jimmy Kane (as José Ignacio Abadaz)

?

Silvia Lienas

Vicky

?

Montserrat Riba Vidal

Rosy Miller (as Monserrat Riba)

Susy Andersen

Sdenka (archive footage) (uncredited)

?

Guido Barlocci

Unknown (uncredited)