Générique complet
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)
