Pérola Negra
Voltar
Basil RathboneSherlock Holmes
Nigel BruceDr. John Watson
Dennis HoeyInspector Lestrade
Evelyn AnkersNaomi Drake
Miles ManderGiles Conover
Ian WolfeAmos Hodder- Charles FrancisFrancis Digby, curator
Holmes HerbertJames Goodram, courier
Richard AherneMuseum Guard Bates
Mary GordonMrs. Hudson
Rondo HattonThe Hoxton Creeper
Harry CordingGeorge Gelder (sem créditos)
Billy BevanConstable With Food Tray (sem créditos)
Leyland HodgsonCustoms Officer (sem créditos)- Eric WiltonChauffeur (sem créditos)
Lillian BronsonMaj. Harker's Housekeeper (sem créditos)