Character Name : Sherlock Holmes

Original Name : Raymond Massey

Gender : Male

Character Name : Dr. Grimesby Rylott

Original Name : Lyn Harding

Gender : Male

Character Name : Helen Stonor

Original Name : Angela Baddeley

Gender : Female

Character Name : Dr. John Watson

Original Name : Athole Stewart

Gender : Male

Character Name : Mrs Staunton

Original Name : Nancy Price

Gender : Female

Character Name : Mrs. Hudson (uncredited)

Original Name : Marie Ault

Gender : Female