- Carola Stagnaro - Detective Altieri
- John Steiner - Christiano Berti
- Lara Wendel - Maria Alboretto
- Isabella Amadeo - Bullmer's secretary
- Mirella Banti - Marion
- Ennio Girolami - Department Store Manager (as Enio Girolami)
- Marino Masé - John
- Fulvio Mingozzi - Alboretto, the porter
- Giampaolo Saccarola - Coroner (as Gianpaolo Saccarola)
- Ippolita Santarelli - Prostitute
- Dario Argento - Narrator (Italian version) / Murderer's Hands (voice) (uncredited)
- Lamberto Bava - Elevator Repairman #1 (uncredited)
- Michele Soavi - Maria's Boyfriend / Man Walking with Girl on Beach (uncredited)
-
Andrew Stanton
-
Kate Trefry
-
Ross Jacobson, Jen Dana
Capítulo disponible en las siguientes plataformas: