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