Peter Neal

Anthony Franciosa

Bullmer

John Saxon

Gianni

Christian Borromeo

Tilde

Mirella D'Angelo

Anne

Daria Nicolodi

Jane McKerrow

Veronica Lario

Detective Germani

Giuliano Gemma

Elsa Manni

Ania Pieroni

Girl on Beach

Eva Robins

Detective Altieri

Carola Stagnaro

Christiano Berti

John Steiner

Maria Alboretto

Lara Wendel

Girl on Beach

Eva Robin's

Marion

Mirella Banti

Bullmer's Secretary

Isabella Amadeo

Department Store Manager

Enio Girolami

Albortello

Fulvio Mingozzi

John

Marino Masé

Monica Maisani

Coroner

Giampaolo Saccarola

Prostitute

Ippolita Santarelli

Narrator (Italian version)

Dario Argento

Francesca Viscardi

Maria's Boyfriend

Michele Soavi

Elevator Repairman #1 (uncredited)

Lamberto Bava

Killer/Homeless Man/Coroner/News Anchor/Handyman

Sean Barrett

Various

Adrienne Posta

Anne

Theresa Russell