David Hemmings
Marcus Daly
Acting
Daria Nicolodi
Gianna Brezzi
Acting
Gabriele Lavia
Carlo
Acting
Macha Méril
Helga Ulmann
Acting
Eros Pagni
Supt. Calcabrini
Acting
Giuliana Calandra
Amanda Righetti
Acting
Piero Mazzinghi
Bardi
Acting
Glauco Mauri
Prof. Giordani
Acting
Clara Calamai
Marta
Acting
Aldo Bonamano
Carlo's Father
Acting
Liana Del Balzo
Elvira
Acting
Vittorio Fanfoni
Cop Taking Notes
Acting
Dante Fioretti
Police Photographer
Acting
Geraldine Hooper
Massimo Ricci
Acting
Jacopo Mariani
Young Carlo
Acting
Furio Meniconi
Rodi
Acting
Fulvio Mingozzi
Agent Mingozzi
Acting
Lorenzo Piani
Fingerprint Cop
Acting
Salvatore Puntillo
Police Agent
Acting
Piero Vida
Fat Cop
Acting
Nicoletta Elmi
Olga
Acting
Dario Argento
Murderer's Hands (uncredited)
Directing
Salvatore Baccaro
Fruit Vendor (uncredited)
Acting
Omero Capanna
Hitman (uncredited)
Acting
Bruno Di Luia
Concerned Man in Restroom (uncredited)
Acting
Attilio Dottesio
Florist (uncredited)
Acting
Tom Felleghy
Surgeon (uncredited)
Acting
Glauco Onorato
(uncredited)
Acting
Marilù Tolo
Carol (archive footage) (uncredited)
Acting
Franco Vaccaro
Pietro Valgoi (uncredited)
Acting
Gianni Di Segni
Rabbi (uncredited)
Acting
Mario Pascucci
Library Caretaker (uncredited)
Acting