Gustav Mahler
Alma Mahler
Bernhard Mahler
Aunt Rosa
Marie Mahler
Young Mahler
Max
Justine Mahler
Cosima Wagner
Nick
Otto Mahler
Anna von Mildenburg
Doctor Roth
Hugo Wolfe
Grandfather
Doctor Richter
Princess
Uncle
Doctor on Train
Professor Sladky
Alois Mahler
Krenek (as Ken Colley)
Putzi
Glucki
Train Conductor (uncredited)
(uncredited)