Crime Mystery Thriller
A dangerous amnesiac escapes from an asylum, hides in the opera house, and is suspected of getting revenge on those who tried to murder him 13 years ago.
Directed by
H. Bruce Humberstone
Written by
Charles Belden
Boris Karloff
Gravelle
Marc Lawrence
Undetermined Minor Role (uncredited) (unconfirmed)
William Demarest
Sergeant Kelly
Keye Luke
Lee Chan
Benson Fong
Opera Supernumerary (uncredited)
Frank Conroy
Mr. Whitely
Warner Oland
Charlie Chan
Joan Woodbury
Dancer in Opera (uncredited)
Gregory Gaye
Enrico Borelli
Oscar Levant
Charlotte Henry
Mlle. Kitty
Bud Geary
Cop (uncredited)
Stanley Blystone
Backstage Cop Who Shoots Gravelle (uncredited)
Tom McGuire
Pop Morris - Stage Doorman
Guy Usher
Inspector Regan
William Bailey
Detective (uncredited)
Jim Farley
Detective (uncredited)
Margaret Irving
Mme. Lilli Rochelle
Maurice Cass
Mr. Arnold
John Bleifer
Murdered Orderly (uncredited)
Thomas Beck
Phil Childers
Adolph Faylauer
Opera Spectator (uncredited)
Otto Fries
Innkeeper (uncredited)
Nedda Harrigan
Mme. Lucretia Borelli
Julia Griffith
Opera Spectator (uncredited)
J. C. Fowler
Opera Spectator (uncredited)
Charles Bancroft
Soldier in Opera (uncredited)
Myrta Bonillas
Villager in Opera (uncredited)
Raymond Brown
Guard (uncredited)
Carita Crawford
Dancer in Opera (uncredited)
Patrick Cunning
Villager in Opera (uncredited)
Zari Elmassian
Mme. Rochelle (singing voice) (uncredited)
Frank Fanning
Cop (uncredited)
Larry Fisher
Cop (uncredited)
Milton Gowman
Villager in Opera (uncredited)
Herschel Graham
Villager in Opera (uncredited)
Harrison Greene
Detective (uncredited)

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