Wyatt Earp

Famous lawman Wyatt Earp (1848-1929) was one of the members of the original 1893 expedition to Mars. Prior to the rescue expedition's arrival, he had done some scouting work for the group at Elysium.

Earp was one of the humans whose bodies were taken over by the Martians who had fled to the Dream-World to escape the plague unleashed by Raxachk. While trapped in the dream realm, his body was taken over by the martian naturalist, Xichak.

The Avatar first met Earp in his dream, wherein he was a horse named "Marshall," and was up for auction, along with the horses Pistol and Smith. Ike Clanton was one of the bidders, and the Avatar had to bid against Clanton to finally win Earp's freedom, and restore his body to him.

Trivia

 * Historically, Wyatt Earp and Ike Clanton were on opposing sides in the Gunfight at the O.K. Corral.