Sherlock Holmes

An eccentric and intelligent private detective known for his ability to resolve delicate matters for important people who require secrecy. Holmes is the protagonist of his stories. He devises creative ways to learn whatever information he needs to solve a case.

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Dr. John Watson

Holmes's former assistant and roommate who still thinks about the private investigator regularly. Watson narrates Holmes's stories and explains Holmes's clever thinking so that readers can follow his line of logical reasoning.

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Irene Adler

A beautiful, young American opera singer whose intelligence captivates Holmes.

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Wilhelm Gottsreich Sigismond von Ormstein, Grand Duke of Cassel-Felstein

The King of Bohemia and a current client of Holmes’s. Portrayed as clueless, especially compared to Holmes, the King loves and admires Adler, but considers her to be of a lower class than him.

Mr. Godfrey Norton

A lawyer who has been dating Irene Adler and marries her during Holmes's investigation