Cast

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

Crew

Roy William Neill

Director (Directing)

Image not Available

Bertram Millhauser

Writer (Writing)

Image not Available

Bertram Millhauser

Screenplay (Writing)

Image not Available

Lynn Riggs

Screenplay (Writing)

Image not Available

Bertram Millhauser

Original Story (Writing)

Image not Available

Lester White

Director of Photography (Camera)

Image not Available

Howard Benedict

Associate Producer (Production)

Roy William Neill

Producer (Production)

Frank Skinner

Music (Sound)

Image not Available

Otto Ludwig

Editor (Editing)