• 
  Dario Argento

  regizor

• 
  Dario Argento

  scenarist

• 
  Leigh McCloskey

  Mark Elliot
• 
  Irene Miracle

  Rose Elliot
• 
  Eleonora Giorgi

  Sara
• 
  Alida Valli

  Carol, the caretaker
• 
  Veronica Lazăr

  The Nurse
• 
  Ania Pieroni

  Musical Student

• 
  Dario Argento

  Narator
• 
  Sacha Pitoëff

  Kazanian
• 
  Ryan Hilliard

  Shadow
• 
  Daria Nicolodi

  Elise Stallone Van Adler
• 
  Gabriele Lavia

  Carlo
• 
  Feodor Chaliapin Jr.

  Professor Arnold / Dr. Varelli (as Feodor Chaliapin)
• 
  James Fleetwood

  Cook

• 
  Leopoldo Mastelloni

  John, the Butler
• 
  Paolo Paoloni

  Music Teacher
• 
  Rosario Rigutini

  Man

• 
  Dario Argento

  o poveste de