Harry Baur as Ludwig van Beethoven

Jean-Louis Barrault as Karl van Beethoven

Annie Ducaux as Therese of Brunswick

Jany Holt as Juliette Guicciardi

Jane Marken as Esther Frechet

Marcel Dalio as Steiner

André Nox as Humpholz

Lucas Gridoux as Smeskall

Paul Pauley as Schuppanzigh

Lucien Rozenberg as Comte Guicciardi

Yolande Laffon as Countess Guicciardi

Jean Debucourt as Count Robert Gallenberg

Georges Paulais as

Georges Saillard as Breuning

Jean Pâqui as Pierrot

Philippe Richard as

Enrico Glori as

André Bertic as Johann Van Beethoven

Sylvie Gance as Dead child's mother

Roger Blin as De Ries

Gaston Dubosc as Anton Schindler

Dalméras as Schubert

Gisèle Préville as

Rika Radifé as Mme Johann van Beethoven