Peter Neal

Anthony Franciosa

Acting

Bullmer

John Saxon

Acting

Anne

Daria Nicolodi

Acting

Detective Germani

Giuliano Gemma

Acting

Gianni

Christian Borromeo

Acting

Tilde

Mirella D'Angelo

Acting

Jane McKerrow

Veronica Lario

Acting

Elsa Manni

Ania Pieroni

Acting

Girl on Beach

Eva Robin's

Acting

Detective Altieri

Carola Stagnaro

Acting

Christiano Berti

John Steiner

Acting

Maria Alboretto

Lara Wendel

Acting

Bullmer's secretary

Isabella Amadeo

Acting

Marion

Mirella Banti

Acting

Department Store Manager

Enio Girolami

Acting

Monica Maisani

Acting

John

Marino Masé

Acting

Alboretto

Fulvio Mingozzi

Acting

Coroner

Giampaolo Saccarola

Acting

Prostitute

Ippolita Santarelli

Acting

Francesca Viscardi

Acting

Narrator / Murderer's Hands (voice) (uncredited)

Dario Argento

Directing

Elevator Repairman #1 (uncredited)

Lamberto Bava

Directing

Maria's Boyfriend / Man with Girl on Beach (uncredited)

Michele Soavi

Directing