Le Secret de Mayerling

Jean Marais

L'archiduc Rodolphe d'Autriche-Hongrie

Dominique Blanchar

Marie Vetsera

Claude Farell

La comtesse Marie Larisch

Jean Debucourt

L'empereur François-Joseph

Jean Toulout

Le comte Taafe

Silvia Monfort

L'archiduchesse Stéphanie

Jane Marken

La baronne Hélène Vetsera

Jacques Dacqmine

L'Archiduc François-Ferdinand

Raphaël Patorni

Le comte Hoyos

François Richard

Le prince de Saxe-Cobourg

André Carnège

Le docteur

Charles Lemontier

Loschek

Jean Aymé

Le nonce

Andrews Engelmann

Le tueur

Marie-Laurence

Denise Benoit

Anna Vetsera

Marguerite Jamois

L'impératrice Elisabeth

Michel Vitold

L'archiduc Jean-Salvator

Guy Henry

Étienne Aubray

(uncredited)

Claude Bertrand

(uncredited)

Simone Barillier

(uncredited)

Michèle Brabo

(uncredited)

Célia Clairet

(uncredited)

Renée Cosima

(uncredited)

Madeleine Foujane

L'ambassadrice d'Allemagne (uncredited)

Eugène Frouhins

(uncredited)

Toni Grand

(uncredited)

Lucien Guervil

(uncredited)

Pierre Juvenet

Un chirurgien (uncredited)

Léon Larive

(uncredited)

Georges Lycan

(uncredited)

Léonce

Un chirurgien (uncredited)

Mag-Avril

(uncredited)

Léo Massart

L'archiduc Albert (uncredited)

Daniel Mendaille

(uncredited)

Gérard Oury

(uncredited)

Jean Ozenne

(uncredited)

Claude Ruida

(uncredited)

Gabriel Sardet

L'archiduc Charles-Louis (uncredited)

Victor Tabournot

(uncredited)

Renée Thorel

Une dame d'honneur (uncredited)

Roger Vincent

Le sculpteur (uncredited)

Wanny

Une mondaine (uncredited)

René Worms

(uncredited)