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