Trailer
Cast
Gabriele Lavia
Carlo
Filippo Perego
Tenant in New York Building (uncredited)
Daria Nicolodi
Elise Stallone Van Adler
Alida Valli
Carol
Veronica Lazăr
Nurse
Fulvio Mingozzi
Cabdriver
Ettore Martini
Burning Building Cop (uncredited)
Corinne Dunne
Tenant in New York Building (uncredited)
Leigh McCloskey
Mark Elliot
Irene Miracle
Rose Elliot
Eleonora Giorgi
Sara
Sacha Pitoëff
Kazanian
Feodor Chaliapin Jr.
Professor Arnold / Dr. Varelli
Ania Pieroni
Musical Student
Leopoldo Mastelloni
John, the Butler
Paolo Paoloni
Music Teacher
Dario Argento
Narrator (voice) (uncredited)