Trailer
Cast
Gerald Hamer
Alfred Pettibone
Gilbert Emery
Sir Henry Marchmont (uncredited)
Basil Rathbone
Sherlock Holmes
Gavin Muir
Mr. Lang, government agent
Bradley Page
Cady
Margaret Seddon
Miss Pringle (uncredited)
Nigel Bruce
Doctor Watson
Marjorie Lord
Nancy Partridge
Henry Daniell
William Easter
John Archer
Naval Lt. Pete Merriam
Don Terry
Howe
Clarence Muse
George
Mary Forbes
Mrs. Pettibone
Colin Kenny
Hotel Doorman (uncredited)
Caroline Frances Cooke
Mrs. Ruxton
George Zucco
Heinrich Hinckel aka Richard Stanley
Edmund MacDonald
Detective Lt. Grogan
Mary Gordon
Mrs. Hudson
Holmes Herbert
Mr. Ahrens
Thurston Hall
Sen. Henry Babcock
Ian Wolfe
Antiques Store Sales Clerk