Gianna Maria Canale

Character: Giselle du Grand / Margherita du Grand

Carlo D'Angelo

Character: L'ispettore Chantal

Dario Michaelis

Character: Pierre Lantin

Paul Müller

Character: Joseph Signoret

Wandisa Guida

Character: Laurette Robert

Angelo Galassi

Character: Ronald Fontaine

Renato Tontini

Character: L'assistente del professore Grand

Charles Fawcett

Character: Signor Robert

Gisella Mancinotti

Character: Amica di Laurette

Miranda Campa

Character: Signora Robert

Antoine Balpêtré

Character: Professor Julien du Grand

Armando Annuale

Character: Un uomo anziano al funerale (uncredited)

Riccardo Freda

Character: Il dottore (uncredited)

Al Lewis

Character: Assistant (uncredited)

Emilio Petacci

Character: L'antiquario (uncredited)

Barbara Wohl

Character: Lisette (uncredited)