Opera

Cristina Marsillach

Betty

Ian Charleson

Marco

Urbano Barberini

Inspector Alan Santini

Daria Nicolodi

Mira

Coralina Cataldi-Tassoni

Giulia

Antonella Vitale

Marion

William McNamara

Stefano

Barbara Cupisti

Signora Albertini

Antonino Iuorio

Baddini (as Antonio Juorio)

Carola Stagnaro

Alma's mother

Francesca Cassola

Alma

Peter Pitsch

Mara Czekova's assistant

Sebastiano Somma

Cop #2

Elizabeth Norberg-Schulz

Lady Macbeth (soprano) (singing voice)

Michele Pertusi

Macbeth (bass) (singing voice)

Dario Argento

Narrator (Italian version) (voice) (uncredited)

Michele Soavi

Inspector Daniele Soave (uncredited)

Karl Zinny

Worker in the backround (uncredited)