Melodia Fatal

Elenco

• 
  Basil RathboneSherlock Holmes
• 
  Nigel BruceDr. John H. Watson
• 
  Patricia MorisonMrs. Hilda Courtney
• 
  Frederick WorlockColonel Cavanaugh
• 
  Harry CordingHamid
• 
  Carl HarbordInspector Hopkins
• 
  Holmes HerbertEbenezer Crabtree
• 
  Edmund BreonJulian 'Stinky' Emery
• Patricia CameronEvelyn Clifford
• 
  Mary GordonMrs. Hudson
• 
  Ian WolfeCommissioner of Scotland Yard
• 
  Leyland HodgsonTour Guide
• 
  Marjorie BennettAntique Shop Assistant (sem créditos)
• 
  William H. O'BrienDetective at Murder Scene
• 
  Frank BakerPhotographer
• 
  Sally Shepherd
• Wallace ScottJoe Cisto
• 
  Jack CurtisPub Patron (sem créditos)
• 
  Cyril DelevantiConvict at Dartmoor Prison (sem créditos)
• 
  Charlie HallCab Driver (sem créditos)
• 
  Olaf HyttenAlfred - Auction House Bookkeeper (sem créditos)
• 
  Frank MillsPub Patron (sem créditos)
• 
  Lillian BronsonMinister's Wife (sem créditos)
• Bobby HalePub Patron (sem créditos)
• Alexander PollardCrabtree's Assistant at Auction (sem créditos)

Equipe Técnica