Keir Dullea

as Marquis de Sade

Senta Berger

as Anne de Montreuil

Lilli Palmer

as Mme. de Montreuil

Anna Massey

as Renée de Montreuil

Sonja Ziemann

as La Beauvoisin

Christiane Krüger

as Laura

Uta Levka

as Rose Keller

Barbara Stanek

as Colette

Susanne von Almassy

as Marquis' Mother

Friedrich Schoenfelder

as Marquis' Father

Herbert Weißbach

as M. de Montreuil

Heinz Spitzner

as Inspector Marais

Tilly Lauenstein

as Madame Grandcon

Ortrud Gross

as

John Huston

as The Abbe

Max Kiebach

as Marquis de Sade as a Boy

Maria Caleita

as Marie (uncredited)

Barboura Morris

as Nun (uncredited)

Anke Syring

as Prostitute in Orgy (uncredited)

Evelyne Traeger

as Prostitute in Orgy (uncredited)