• 
  Alida Valli

  Countess Alessandra Mirafiori
• 
  Rossano Brazzi

  Dr. Lucidi
• 
  Angus Scrimm

  Man in Grey
• 
  Ugo Pagliai

  Commissioner Valenti
• 
  Veronica Logan

  Rebecca
• 
  David Warbeck

  Commissioner Bonelli
• 
  Geoffrey Copleston

  Mr. Fairbrain
• 
  Ciccio Ingrassia

  Beggar

• 
  Giorgio Albertazzi

  Tatăl
• 
  Linnea Quigley

  Wendy Williams

• 
  Antonio Visone

  art director
• 
  Steve Johnson

  special effects