Marsha Hunt
— Nora Ryan
William Prince
— Tony Salerno Jr.
Frank McHugh
— John Donovan
Martha O'Driscoll
— Ruth Haines
Hans Járay
— Tony Salerno Sr.
Olin Downes
— Olin Downes
Joseph Buloff
— Anton Tribik
Walter Damrosch
— Walter Damrosch
Bruno Walter
— Bruno Walter
Lily Pons
— Lily Pons
Gregor Piatigorsky
— Gregor Piatigorsky
Risë Stevens
— Risë Stevens
Artur Rodzinski
— Artur Rodzinski
Arthur Rubinstein
— Arthur Rubinstein
Jan Peerce
— Jan Peerce
Ezio Pinza
— Ezio Pinza
Jascha Heifetz
— Jascha Heifetz
Fritz Reiner
— Fritz Reiner
Vaughn Monroe
— Vaughn Monroe
Leopold Stokowski
— Leopold Stokowski
Harry James
— Harry James
Emile Boreo
— Henry
Eole Galli
— Katinka