Director/a
Roy William Neill
DIRECTOR/A
Reparto (por orden de créditos)
Basil Rathbone
Sherlock Holmes
Nigel Bruce
Doctor Watson
Marjorie Lord
Nancy Partridge
Henry Daniell
William Easter
George Zucco
Stanley
John Archer
Lt. Pete Merriam
Gavin Muir
Bart Lang
Edmund MacDonald
Detective Lt. Grogan
Don Terry
Howe
Bradley Page
Cady
Holmes Herbert
Mr. Ahrens
Thurston Hall
Senator Henry Babcock
Lillian Bronson
Mrs. J. Wellington Jr. (uncredited)
John Burton
Army Inspector (uncredited)
Eddie Coke
Airplane Steward (uncredited)
Evelyn Cook
Nancy's Friend at Engagement Party (uncredited)
Caroline Frances Cooke
Mrs. Ruxton (uncredited)
Kernan Cripps
Hotel Porter (uncredited)
Leslie Denison
Transport Pilot (uncredited)
Dan Dowling
Party Guest (uncredited)
Gilbert Emery
Sir Henry Marchmont (uncredited)
Alice Fleming
Mrs. Jellison (uncredited)
Mary Forbes
Mother Pettibone (uncredited)
Mary Gordon
Mrs. Hudson (uncredited)
Gerald Hamer
Alfred Pettibone aka John Grayson (uncredited)
Leyland Hodgson
Airport Official (uncredited)
Colin Kenny
Hotel Doorman (uncredited)
Alexander Lockwood
Reporter (uncredited)
Charles Marsh
Thomas Martin
Waiter (uncredited)
Charles Meakin
Mr. Moore (uncredited)
Irving Mitchell
Laboratory Technician (uncredited)
Clarence Muse
George - Porter (uncredited)
Gene O'Donnell
Jason Robards Sr.
Paul Scott
Army Major (uncredited)
Margaret Seddon
Miss Pringle (uncredited)
Bernard Sell
Lee Shumway
Army Major at Engagement Party (uncredited)
Regina Wallace
Mrs. Partridge (uncredited)
Phil Warren
Young Officer (uncredited)
Ian Wolfe
Antique Store Clerk (uncredited)
Frederick Worlock
Radio Announcer (uncredited)