Boris Karloff Gorca (segment "The Wurdalak") Mark Damon Vladimire d'Urfe (segment "The Wurdalak") Michèle Mercier Rosy (segment "The Telephone") Susy Andersen Sdenka (segment "The Wurdalak") Lidia Alfonsi Mary (segment "The Telephone") Jacqueline Pierreux Helen Chester (segment "A Drop Of Water") Glauco Onorato Giorgio (segment "The Wurdalak") Massimo Righi Pietro (segment "The Wurdalak") Rika Dialina Maria (segment "The Wurdalak") Milo Quesada Frank Rainer (segment "The Telephone") Milly The Maid (segment "A Drop Of Water") Gustavo De Nardo Police Inspector (segment "A Drop Of Water") Harriet Medin Neighbor (segment "A Drop Of Water") Mario Bava Director Ubaldo Terzano Director