Mystery Crime Thriller
In World War II, a British secret agent carrying a vitally important document is kidnapped en route to Washington. The British government calls on Sherlock Holmes to recover it.
Directed by
Roy William Neill
Written by
Bertram Millhauser
Ian Wolfe
Antiques Store Sales Clerk
Basil Rathbone
Sherlock Holmes
Henry Daniell
William Easter
Nigel Bruce
Doctor Watson
John Archer
Naval Lt. Pete Merriam
George Zucco
Heinrich Hinckel aka Richard Stanley
Thurston Hall
Sen. Henry Babcock
Gavin Muir
Mr. Lang, government agent
Clarence Muse
George
Mary Forbes
Mrs. Pettibone
Marjorie Lord
Nancy Partridge
Gilbert Emery
Sir Henry Marchmont (uncredited)
Edmund MacDonald
Detective Lt. Grogan
Mary Gordon
Mrs. Hudson
Holmes Herbert
Mr. Ahrens
Bradley Page
Cady
Colin Kenny
Hotel Doorman (uncredited)
Margaret Seddon
Miss Pringle (uncredited)
Gerald Hamer
Alfred Pettibone
Caroline Frances Cooke
Mrs. Ruxton
Don Terry
Howe
John Burton
Army Inspector (uncredited)
Mary Field
Party Pianist (uncredited)

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