Jean-Louis Barrault

as Hector Berlioz

Renée Saint-Cyr

as Marie Martin

Lise Delamare

as Harriet Smithson

Jules Berry

as Schlesinger

Bernard Blier

as Antoine Charbonnel

Gilbert Gil

as Louis Berlioz

Julien Bertheau

as Victor Hugo (uncredited)

Catherine Fonteney

as Madame Berlioz mother (uncredited)