Edwige Feuillère as Countess Sophie Chotek

John Lodge as Archduke Franz Ferdinand

Aimé Clariond as Prince of Montenuovo

Jean Worms as Emperor François Joseph

Jean Debucourt as Janatschek

Raymond Aimos as Valet of François Ferdinand

Gabrielle Dorziat as Archduchess Marie-Thérèse

Henri Bosc as Serbian Ambassador

Gaston Dubosc as Count Chotek

Marcel André as Archduke Frédéric

Eddy Debray as

Jacques Roussel as

Colette Régis as Archduchess Isabelle

Sylvain Itkine as

Jacqueline Marsan as Young archduchess

Henri Beaulieu as

William Aguet as Chamberlain (uncredited)

Jean Buquet as (uncredited)

Monique Clariond as Young archduchess (uncredited)

Francine Claudel as (uncredited)

Louis Florencie as (uncredited)

Georges-François Frontec as (uncredited)

Gilbert Gil as Gavrilo Princip (uncredited)

Jean-Paul Le Chanois as Gavrilo Princip (uncredited)

Geneviève Morel as (uncredited)

Primerose Perret as (uncredited)

Philippe Richard as (uncredited)