Katharine Hepburn
Clara Wieck Schumann
Paul Henreid
Robert Schumann
Robert Walker
Johannes Brahms
Henry Daniell
Franz Liszt
Leo G. Carroll
Professor Wieck
Elsa Janssen
Bertha
Gigi Perreau
Julie
'Tinker' Furlong
Felix Schumann
Ann Carter
Marie Schumann
Janine Perreau
Eugenie Schumann
Jimmy Hunt
Ludwig Schumann
Anthony Sydes
Ferdinand Schumann
Eilene Janssen
Elise Schumann
Roman Bohnen
Dr. Hoffman
Ludwig Stössel
Haslinger
Tala Birell
Princess Valerie Hohenfels
Kurt Katch
Judge
Henry Stephenson
King Albert
Konstantin Shayne
Reinecke
George Chakiris
Choir Boy (as George Kerris)
Byron Foulger
Bailiff (uncredited)
Pierre Watkin
Duke of X (uncredited)