"When a woman is found dead with her throat torn out, the local villagers blame a supernatural monster. But Sherlock Holmes, who gets drawn into the case from nearby Quebec, suspects a human murderer."
Basil Rathbone
as Sherlock Holmes
Nigel Bruce
as Doctor Watson
Gerald Hamer
as Potts / Tanner / Ramson
Paul Cavanagh
as Lord Penrose
Arthur Hohl
as Emile Journet
Miles Mander
as Judge Brisson
Kay Harding
as Marie Journet
David Clyde
as Police Sergeant Thompson
Ian Wolfe
as Drake
Victoria Horne
as Nora
Al Ferguson
as Attendant (uncredited)
Olaf Hytten
as Hotel Day Desk Clerk (uncredited)
Bobby Hale
as Villager in Pub (uncredited)
Harry Allen
as
Gertrude Astor
Clyde Fillmore
Charles Francis
George Kirby
Pietro Sosso
Edmund L. Hartmann
Screenplay
Brenda Weisberg
Story
Paul Landres
Editor
John B. Goodman
Art Direction
Paul Gangelin
Paul Sawtell
Original Music Composer
Ralph M. DeLacy
Roy William Neill
Producer
Arthur Conan Doyle
Characters
Director
George Robinson
Director of Photography