Basil Rathbone
Sherlock Holmes
When a German saboteur jeeringly predicts to the nation new depredations, via their radio "Voice of Terror", the Intelligence Inner Council summons Sherlock Holmes (Basil Rathbone) to help in the crisis.
Sherlock Holmes
Doctor Watson
Kitty
Sir Evan Barham
R.F. Meade
Sir Anthony Lloyd
General Jerome Lawford
Admiral Sir John Fabian Prentiss
Captain Roland Shore
Mrs. Hudson
Jill Grandis
Camberwell
Smithson - Barham's Butler (uncredited)
Meade's Henchman (uncredited)
BBC Radio Announcer (voice) (uncredited)
Voice of Terror (voice) (uncredited)
Bar Patron (uncredited)
Director
Screenplay
Screenplay
