Sherlock Holmes's longtime friend and biographer, who narrates their adventures and provides a perspective of an intelligent but amateur observer.

The last of the Baskervilles and heir to the Baskerville estate; he is courageous and finds himself involved in mysterious and dangerous events on the moor.

A country doctor and friend of the late Sir Charles Baskerville, who seeks Holmes’s help in investigating mysterious occurrences.

A naturalist who lives near Baskerville Hall, characterized by his prim demeanor and interest in the natural world.

Jack Stapleton’s wife, who is presented as his sister and is a key figure in creating intrigue and drama.

The long-serving butler at Baskerville Hall, known for his solemn manner and connection to mysterious activities.

The wife of Barrymore, the butler, whose nighttime sorrows are linked to family troubles.

An escaped convict hiding on the moor, whose presence adds an element of danger.

A beautiful woman with connections to Sir Charles Baskerville, involved in a mysterious meeting.

A London police inspector who assists Holmes, known for his skepticism of Holmes’s methods.

A resourceful boy employed by Holmes to assist with tasks such as message delivery and gathering information.