Elenco

• 

  Basil Rathbone

  Sherlock Holmes

• 

  Nigel Bruce

  Doctor Watson

• 

  Dennis Hoey

  Inspector Lestrade

• 

  Hillary Brooke

  Sally Musgrave

• 

  Mary Gordon

  Mrs. Hudson

• 

  Halliwell Hobbes

  Alfred Brunton, the butler

• 

  Milburn Stone

  Capt. Pat Vickery

• 

  Minna Phillips

  Mrs. Howells

• 

  Arthur Margetson

  Dr. Bob Sexton

• 

  Gavin Muir

  Phillip Musgrave