The Black Diamond

A wealthy man's wife dies in a car crash; she is survived by him and their daughter. The father learns that he's not her biological father.

Drama

Gaby Morlay

(Mademoiselle Marthe Dubard)

Charles Vanel

(François Mitry)

Louise Carletti

(Nora Mitry)

Carlettina

(Nora at 9 years old)

Jean Joffre

(Daniel)

Henriette Delannoy

(Madame de Morigny)

Jeanne Véniat

(Cathy)

Gabrielle Davran

(Sister Angèle)

Paul Demange

(Chauffeur)

Hélène Constant

(Thérèse Mitry)

Guy Denancy

(Jacques Maurin)

Michel Retaux

(Jacques at 12 years old)

Jacques Roussel

(Vincent)

Georges Paulais

(Guest)

Armand Morins

Marcel Dumont

Alexandre Mathillon

Simone Bessy

Maurice Escande

(Guy de Fresnoy)

Robert Dartois

((uncredited))

Roger Vincent

(Prefect (uncredited))