On screen
Cast
10 credited performers
Jan Kiepura
Riccardo Gatti
Aileen Marson
Mary Newberg
Emlyn Williams
Theodore Bruckner
Sonnie Hale
Gatti's secretary
Artwork unavailable
Reginald Smith
Baron Felix Kleeberg
Gina Malo
Kleeberg's Brunet
George Merritt
Otto Newberg
Artwork unavailable
Muriel George
Mrs. Newberg
Artwork unavailable
D.J. Williams
Opera House Secretary
Bruce Winston
Character not listed