as Sir Charles Baskerville
as Head Gardener
as Valet de Chambre
as Campo Basse
as Cassius
as Second Doctor
as Beggar (uncredited)
as King Louis XIII
as Minister
as Osborne "Uncle"
as Chief Frank Hyers
as Crony #2
as Sir Joshua Longstreet
as Harmonica Player
as William Pitt
as Professor (uncredited)
as Duke of Winterset
as Commissioner Cross
as Colonel Du Flos (as Ian MacLaren)
as Priest (uncredited)
as General Trafford-Jones
as Father Caslez
as Marvin Fletcher
as Auntie Pru
