• 
  Mario Bava

  regizor

• 
  Mario Bava

  scenarist

• 
  Michèle Mercier

  Rosy
• 
  Lidia Alfonsi

  Mary
• 
  Boris Karloff

  Gorca
• 
  Mark Damon

  Vladimire d'Urfe
• 
  Susy Andersen

  Sdenka
• 
  Massimo Righi

  Pietro

• 
  Gustavo De Nardo

  Police Inspector (segment "The Drop of Water")
• 
  Jacqueline Pierreux

  Helen Chester (segment "The Drop of Water")
• 
  Milo Quesada

  Frank Rainer (segment "The Telephone")
• 
  Harriet Medin

  Neighbor (segment "The Drop of Water")
• 
  Rika Dialyna

  Maria (segment "I Wurdalak") (as Rica Dialina)
• 
  Milly

  The Maid (segment "La goccia d'acqua") (as Milly Monti)
• 
  Glauco Onorato

  Giorgio (segment "I Wurdalak")