The Black Diamond

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)