Calificación
Reparto

Farley Granger
Spike

Lucia Bosè
Sylvia Forrest

Giacomo Rossi Stuart
Donald Forrest

Stelvio Rosi
Dr. Williams

Mia Genberg
Susan West

Gianni Medici
Joe

Angelo Francesco Lavagnino
Prof. Lawrence

Dino Fazio
Inspector Wright

Giulia Rovai
Joe's Girl

Franco Beltramme
Det. Sam

Loredana Nusciak
Model for Photo of Lady Sheila Marlowe