Dario Argento
Narrator (Italian version) (voice) (uncredited)
Ian Charleson
Marco
William McNamara
Stefano
Urbano Barberini
Inspector Alan Santini
Daria Nicolodi
Mira
Coralina Cataldi-Tassoni
Giulia
Michele Soavi
Inspector Daniele Soave (uncredited)
Karl Zinny
Worker in the backround (uncredited)
Barbara Cupisti
Signora Albertini
Carola Stagnaro
Alma's mother
Peter Pitsch
Mara Czekova's assistant
Cristina Marsillach
Betty
Antonino Iuorio
Baddini (as Antonio Juorio)
Sebastiano Somma
Cop #2
Michele Pertusi
Macbeth (bass) (singing voice)
Elizabeth Norberg-Schulz
Lady Macbeth (soprano) (singing voice)