Sir Henry
Sir Henry Baskerville is the nephew of Sir Charles Baskerville, and heir of the Baskerville estate and fortune. He shows himself to be bold, practical and straightforward, but also impatient, hasty and stubborn. Though not initially superstitious, he later grows anxious over the legend.
Miss Stapleton
Miss Beryl Stapleton is the woman believed to be Stapleton's sister, but who is actually his wife. Though less wicked than he is, she has been his accomplice for a long time, having used the alias Mrs. Vandeleur. She tries to warn Sir Henry to flee the moor, but is unsuccessful partly because he falls in love with her.