Peter Neal
Anthony Franciosa
Bullmer
John Saxon
Christiano Berti
John Steiner
Maria Alboretto
Lara Wendel
Bullmer's secretary
Isabella Amadeo
Marion
Mirella Banti
Department Store Manager (as Enio Girolami)
Ennio Girolami
Monica Maisani
John
Marino Masé
Alboretto, the porter
Fulvio Mingozzi
Coroner (as Gianpaolo Saccarola)
Giampaolo Saccarola
Prostitute
Ippolita Santarelli
Anne
Daria Nicolodi
Francesca Viscardi
Narrator (Italian version) / Murderer's Hands (voice) (uncredited)
Dario Argento
Elevator Repairman #1 (uncredited)
Lamberto Bava
Maria's Boyfriend / Man Walking with Girl on Beach (uncredited)
Michele Soavi
Detective Germani
Giuliano Gemma
Gianni
Christian Borromeo
Tilde
Mirella D'Angelo
Jane McKerrow
Veronica Lario
Elsa Manni
Ania Pieroni
Girl on Beach
Eva Robin's
Detective Altieri
Carola Stagnaro
Second Assistant Director
Editor
Franco Fraticelli
Director of Photography
Luciano Tovoli
Original Music Composer
Claudio Simonetti
First Assistant Director
Screenplay
Director
Story
Production Design
Giuseppe Bassan
Production Secretary
Saverio Mangogna
Assistant Editor
Roberto Priori
Piero Bozza
Sound Effects
Luciano Anzellotti
Property Master
Osvaldo Monaco
Boom Operator
Giancarlo Laurenzi
Giuseppe Pagnotta
Production Accountant
Carlo Du Bois
Special Effects
Giovanni Corridori
Assistant Camera
Maurizio Piano
Set Dresser
Aldo Taloni
Massimo Anzellotti
Ferdinando Caputo
Colorist
David Block
Other
Vanda Caprioli
Sound
Mario Dallimonti
Assistant Costume Designer
Barbara Canevari
Sound Mixer
Romano Pampaloni
Assistant Production Design
Antonella Caputo
Script Supervisor
Francesca Roberti
Shoe Design
Diego Della Valle
Gaffer
Francesco Giulivi
Assistant Property Master
Cesare Piccini
Unit Publicist
Enrico Lucherini
Camera Operator
Giuseppe Tinelli
Grip
Remo Cartocci
Still Photographer
Francesco Bellomo
Assistant Set Decoration
Massimo Garrone
Key Grip
Mario Moreschini
Roberto Marsigli
Production Supervisor
Cesare Jacolucci
Set Decoration
Maurizio Garrone
Fabio Pignatelli
Makeup Artist
Pierantonio Mecacci
Production Manager
Giuseppe Mangogna
Costume Designer
Pierangelo Cicoletti
Key Hair Stylist
Patrizia Corridoni
Massimo Morante
Producer
Claudio Argento
Executive Producer
Salvatore Argento
Franco Tomei
Tommaso Barbi