Stephen Haggard

Wolfgang Amadeus Mozart

Victoria Hopper

Constance Mozart

John Loder

Prince Lobkowitz

Jean Cadell

Frau Mozart

Hubert Harben

Leopold Mozart

Frederick Leister

Emperor

Marie Lohr

Empress

Laurence Hanray

Archbishop of Salzburg

Norman Walker

Emanuel Schikaneder

George Curzon

Lorenzo Da Ponte

Muriel George

Frau Weber

Raymond Huntley

Langer

Leueen MacGrath

Josefa Weber

Tom Gill

(uncredited)

Morland Graham

(uncredited)

Arthur Hambling

(uncredited)

Liane Haid

Aloysia

John Clifford

(uncredited)

Julie Suedo

Hans's Wife (uncredited)