Charles Boyer as L'archiduc Rodolphe

Danielle Darrieux as Marie Vetsera

Jean Dax as L'empereur François-Joseph

Yolande Laffon as L'archiduchesse Stéphanie

Suzy Prim as La Comtesse Larisch

Gina Manès as Marinka

Marthe Régnier as La Baronne Vetsera

Odette Talazac as Marie's Nanny

Nane Germon as Anna Vetsera

Assia Granatouroff as Marie's Cousin

Christiane Ribes as Girl

Gabrielle Dorziat as Empress Élisabeth

Jean Dax as Emperor François-Joseph

Jean Debucourt as Count Taafe

André Dubosc as Loscheck

René Bergeron as Szeps

Vladimir Sokoloff as Chief of Police

Raymond Aimos as First Policeman

André Siméon as Second Policeman

André Fouché as Georges Vetsera

Jean Davy as Count Hoyos

Jacques Berlioz as L'aide de Camp

Fernand Ledoux as Philippe de Cobourg