Marcus Daly

David Hemmings

Acting

Gianna Brezzi

Daria Nicolodi

Acting

Carlo

Gabriele Lavia

Acting

Helga Ulmann

Macha Méril

Acting

Supt. Calcabrini

Eros Pagni

Acting

Amanda Righetti

Giuliana Calandra

Acting

Bardi

Piero Mazzinghi

Acting

Prof. Giordani

Glauco Mauri

Acting

Marta

Clara Calamai

Acting

Carlo's Father

Aldo Bonamano

Acting

Elvira

Liana Del Balzo

Acting

Cop Taking Notes

Vittorio Fanfoni

Acting

Police Photographer

Dante Fioretti

Acting

Massimo Ricci

Geraldine Hooper

Acting

Young Carlo

Jacopo Mariani

Acting

Rodi

Furio Meniconi

Acting

Agent Mingozzi

Fulvio Mingozzi

Acting

Fingerprint Cop

Lorenzo Piani

Acting

Police Agent

Salvatore Puntillo

Acting

Fat Cop

Piero Vida

Acting

Olga

Nicoletta Elmi

Acting

Murderer's Hands (uncredited)

Dario Argento

Directing

Fruit Vendor (uncredited)

Salvatore Baccaro

Acting

Hitman (uncredited)

Omero Capanna

Acting

Concerned Man in Restroom (uncredited)

Bruno Di Luia

Acting

Florist (uncredited)

Attilio Dottesio

Acting

Surgeon (uncredited)

Tom Felleghy

Acting

(uncredited)

Glauco Onorato

Acting

Carol (archive footage) (uncredited)

Marilù Tolo

Acting

Pietro Valgoi (uncredited)

Franco Vaccaro

Acting

Rabbi (uncredited)

Gianni Di Segni

Acting

Library Caretaker (uncredited)

Mario Pascucci

Acting