"Deadwood" features many historical people. For example, Wild Bill Hickok, Seth Bullock, Sol Star, Calamity Jane, Al Swearengen, Wyatt Earp, E. B. Farnum, Charlie Utter and George Hearst have all been used in the series. The stories that deal these characters include historical truths as well as fictional parts. Some of the characters are fully fictional, but they may have been based on actual persons.