Rollebesetning og filmteam
-
Basil RathboneSherlock Holmes - Nigel BruceDr. John H. Watson
- Alan MowbrayMaj. Duncan-Bleek
- Dennis HoeyInspector Lestrade
- Renee GodfreyVivian Vedder
- Mary ForbesLady Margaret Carstairs
- Billy BevanPassenger Car Attendant
- Frederick WorlockProf. William Kilbane
- Leyland HodgsonTrain Conductor (uncredited)
- Geoffrey SteeleHon. Roland Carstairs
- Boyd DavisInspector MacDonald (uncredited)
- Janet MurdochMrs. Shallcross (uncredited)
- Skelton KnaggsSands
- Gerald HamerAlfred Shallcross (uncredited)
- Harry CordingMock
- Charles KnightGuard (uncredited)
- Bobby WisslerMock's Son (uncredited)
- Roy William NeillRegissør
- Roy William NeillProdusent
- Howard BenedictProdusent
- Frank GruberManusforfatter