
The Mystery Master in America!
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 RathboneSherlock Holmes
Nigel BruceDoctor WatsonMarjorie LordNancy Partridge
Henry DaniellWilliam Easter
George ZuccoHeinrich Hinckel aka Richard Stanley
John ArcherNaval Lt. Pete Merriam
Gavin MuirMr. Lang, government agent
Edmund MacDonaldDetective Lt. Grogan
Don TerryHowe
Mary GordonMrs. Hudson
Bradley PageCady
Clarence MuseGeorge
Mary ForbesMrs. Pettibone
Holmes HerbertMr. Ahrens
Thurston HallSen. Henry Babcock