Characters played by Barbara Steele
Helen Karnstein
Mary Karnstein
Characters played by George Ardisson
Baron Kurt Humboldt
Characters played by Halina Zalewska
Lisabeth Karnstein
Adele Karnstein
Characters played by Umberto Raho
Von Klage
the Priest
Characters played by Laura Nucci
Grumalda
Characters played by Giuliano Raffaelli
Count Humboldt
Characters played by Nello Pazzafini
Monk
the Servant
Characters played by Jeffrey Darcey
the Messenger
Characters played by Aldo Barozzi
Plague Victim
Characters played by Severino D'Ottavi
Party Guest
Characters played by Alba Maiolini
Wife of Plague Victim
Characters played by Enzo Mondino
Villager at the Execution
Characters played by Piero Pastore
Baron Von Letz