Sherlock Holmes is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. A brilliant London-based "consulting detective", Holmes is famous for his astute logical reasoning, his ability to take almost any disguise, and his use of forensic science skills to solve difficult cases.
Dr. Watson is a character in the Sherlock Holmes stories by Sir Arthur Conan Doyle. Watson is Sherlock Holmes's assistant and flatmate, and is the first person narrator of all but four stories in the Sherlock Holmes canon.
The Baskerville Family
Sir Hugo Baskerville is a wicked man who kidnapped a yeoman's daughter. He and his friends dragged her to Baskerville Hall where they locked her in the tower. While he was having dinner with his guests, the girl escaped. Once it was discovered that she was missing, Hugo Baskerville sent dogs to retrieve her. The guests ran to stop him, once they found out what he was intending. Yet, when they got to the woods they found that he had already killed her. However, he was also dead. A giant black hound was found tearing his throat. That is how the Curse of the Baskervilles began.
Sir Charles Baskerville is a descendant that has information about what happen on the night that the Yeoman's daugther and Hugo Baskerville are found dead.
Sir Henry Baskerville was the uncle of Sir Charles Baskerville.
Jack Stapleton - A bookish-looking former schoolmaster, Stapleton chases butterflies on the moors and pursues antiquarian interests, Outwardly a polite gentleman, he inwardly possesses a hot temper which reveals itself at key moments. It transpires that Stapleton—in reality a long-lost relative of Sir Henry's who stands to inherit the Baskerville fortune—is a scheming, manipulative and money-hungry criminal that Holmes and Watson come to respect and fear.
Dr. Mortimer - A medical practitioner and friend of the Baskervilles. Mortimer is tall, thin and good-natured with rather eccentric habits. He is, nonetheless, a competent country doctor who was made the executor of Sir Charles' will. He sets the book's plot in train by traveling to London to inform Holmes and Watson about the strange events surrounding Sir Charles' demise, and alerting them to the dangerous situation that Sir Henry now faces as Sir Charles' heir. Mortimer continues to assist Holmes and Watson in their twin roles as investigators/bodyguards until the conclusion of the case.
Beryl Stapleton - Allegedly Stapleton's sister, this dusky Latin beauty turns out to be his wife. Eager to prevent another death but terrified of her violent spouse, she provides enigmatic warnings to Sir Henry and Watson.
Mr. John & Mrs. Eliza
The longtime domestic help of the Baskerville clan. Earnest and eager to please, the portly Mrs. Barrymore and her gaunt husband figure as a kind of red herring for the detectives, in league with their convict brother but ultimately no more suspicious than Sir Henry.
Selden - An escaped killer.
Laura Lyons - A local young woman. Laura Lyons is the beautiful brunette daughter of "Frankland the crank," the local litigator who disowned her when she married against his will. Subsequently abandoned by her husband, the credulous Laura turns to Mr. Stapleton and Charles for help.
Mr. Frankland - Laura's father. Frankland is a man who likes to sue, a sort of comic relief with a chip on his shoulder about every infringement on what he sees as his rights. Villainized due to his one-time harsh treatment of Laura, Frankland is for the most part a laughable jester in the context of this story.