In addition to starring in Parisian theatres he appeared in the French provinces, and during the 1920s was seen in twenty plays during a long tour of South America.
[2] In 1902 he was a member of the company headed by Jean Coquelin in Paul Anthelme's Nos deux consciences at the Théâtre de la Porte Saint-Martin.
[2] In addition to acting he was an occasional playwright: in 1903 he was co-author of a farce, Tonton presented at the Théâtre du Palais-Royal, and in 1909 Alexandre Germain starred in Rozenberg's one-act comedy, Le Pavé de l'ours.
He was then appointed Directeur de la scène at the Théâtre Michel, and appeared there in 1912 in Georges Feydeau's On purge bébé!
[9] Although remaining mostly a stage performer, in the 1930s Rozenberg appeared in six films, including René Sti's Moutonnet,[10] and Abel Gance's Un grand amour de Beethoven.
[2] During the German occupation of Paris during the Second World War, Rozenberg was hunted by the Gestapo and was forced to live in difficult and sometimes dangerous circumstances.