Daniel Gélin as Léonard Maurizius

Madeleine Robinson as Elisabeth Maurizius

Eleonora Rossi Drago as Anna Jahn

Anton Walbrook as Grégoire Waremme

Charles Vanel as Wolf Andergast

Berthe Bovy as La grand-mère

Denis d'Inès as Pierre-Paul Maurizius

Claude Arlay as

Pierre Asso as Le maître-chanteur

Paola Borboni as Madame Bobika

Jane Faber as La gouvernante

Jim Gérald as Le professeur

Harry-Max as L'avocat

Joseph Palau-Fabre as Le conseiller

Sandro Ruffini as Le proviseur

Claude Sylvain as Mélita

Jacques Varennes as Le juge d'instruction

Jean d'Yd as Le président

Jacques Chabassol as Etzel Andergast

Annie Fargue as Melita Bobike (uncredited)

Daniel Mendaille as (uncredited)

Bernard Musson as Le greffier (uncredited)

Aldo Silvani as (uncredited)

Sigfrit Steiner as Le géôlier (uncredited)