Sir Henry Baskerville

Sherlock Holmes

Beryl Stapleton

Doctor John H. Watson

Dr. James Mortimer

Barryman

Frankland

Mrs. Jennifer Mortimer

John 'Jack' Stapleton

Sir Hugo Baskerville

London Cabbie John Clayton

Mrs. Barryman

The Coroner

The Notting Hill Murderer

Mrs. Hudson

Sir Charles Baskerville

Betsy Ann

Betsy Ann's Mother (uncredited)

Ship's Officer (uncredited)

Ship's Steward (uncredited)

Ship's Porter (uncredited)

Open Carriage Driver (uncredited)

Roderick

Hugo's Servant (uncredited)

Chambermaid (uncredited)

(uncredited)

Ship Passenger (uncredited)

Ship Passenger (uncredited)

The Hound (as Chief)

Ship Passenger (uncredited)

Ship Passenger (uncredited)