Credits
Cast
Barbara Steele
Helen Rochefort / Mary
George Ardisson
Baron Kurt Humboldt
Halina Zalewska
Adele Karnstein / Lisabeth Karnstein
Umberto Raho
Von Klage
Laura Nucci
Grumalda
Giuliano Raffaelli
Count Humboldt
Nello Pazzafini
Monk
Jeffrey Darcey
The Messenger
Art
Giorgio Giovannini
Art Direction
Henry Fraser
Set Decoration
Camera
Riccardo Pallottini
Director of Photography
Costume & Make-Up
Humphrey Patterson
Costume Design
Florence Clark
Hairstylist
Edmund Stroll
Makeup Artist
Directing
Antonio Margheriti
Director, Screenplay
Editing
Mario Serandrei
Editor
Production
Felice Testa Gay
Producer
Sound
Carlo Rustichelli
Original Music Composer
John Tamblyn
Sound
Writing
Tonino Valerii
Screenplay, Dialogue
Ernesto Gastaldi
Story