John Henry "Doc" Holliday was an American gambler, gunfighter, and dentist, as well as a good friend of Wyatt Earp. He is best known for his role in the events leading up to and following the Gunfight at the O.K. Corral. He developed a reputation as having killed more than a dozen men in various altercations, but modern researchers have concluded that, contrary to popular myth-making, Holliday killed only one or two men. Holliday's colorful life and character have been depicted in many books and portrayed by well-known actors in numerous movies and television series.