Exiled from the court of Spain, Don Salluste, the chief of police, wants to take revenge on the Queen. One day he meets Ruy Blas, a young student who happens to be a lookalike of Don Cesar, his nephew. Salluste disguises Ruy Blas and presents him as Don Cesar. It doesn't take long before Ruy Blas, intelligent, virtuous and generous as he is becomes popular and the Queen, who has fallen in love with him, appoints him Prime Minister. All seems for the best in the best of worlds but Salluste has not forgotten his revenge, far from that ...
Danielle Darrieux
as La reine d'Espagne Marie de Neubourg
Jean Marais
as Ruy Blas / Don César de Bazan
Marcel Herrand
as Le marquis Don Salluste de Bazan
Gabrielle Dorziat
as la duchesse d'Albuquerque
Alexandre Rignault
as Goulatromba
Giovanni Grasso
as Don Gaspar Guritan
Paul Amiot
as Le marquis de Santa Cruz
Jone Salinas
as Casilda
Gilles Quéant
as Le duc d'Albe
Armand Lurville
as l'archevêque
Jacques Berlioz
as Un ministre
Charles Lemontier
as Le comte de Camporeal
