Deanna Durbin as Patricia Cardwell

Leopold Stokowski as Leopold Stokowski

Adolphe Menjou as John Cardwell

Alice Brady as Mrs. Frost

Eugene Pallette as John R. Frost

Mischa Auer as Michael

Billy Gilbert as Garage Owner

Alma Kruger as Mrs. Tyler

J. Scott Smart as Stage Doorman

Frank Jenks as Taxi Driver

Jed Prouty as Bitters

Jameson Thomas as Russell

Howard Hickman as Johnson

Bess Flowers as Party Guest at Mrs. Frost's

Mary Forbes as Concert Hall Patron

Edwin Maxwell as Ira Westing - Editor

Frank McLure as Men's Club Member

Cyril Ring as Concert Attendee

Larry Steers as Concert Attendee