Bill Williamson (Red Dead Redemption)

William "Bill" Williamson is one of the primary antagonists in Red Dead Redemption. He is a former gang partner of John Marston. Marston has been extorted into hunting down his former brothers in arms, with Bill Williamson being the primary target. The hunt for Bill Williamson serves as the impetus for the game's plot, and is the central motivating factor throughout.

With the addition of the Liars and Cheats DLC pack, Bill Williamson is also a multiplayer character model that may be selected in the 'Damnation' section of the Outfitter.

Background
Bill Williamson was John's former partner in Dutch's Gang. During this time, Williamson seems to have had a casual sexual relationship with Abigail Marston. In 1906, a botched bank robbery leaves Marston wounded and disillusioned. Some time afterward, Dutch goes into semi-retirement and Williamson established his own gang whom resided in Fort Mercer.

In 1911, John and Bill meet once again at Fort Mercer. John has been extorted into pursuing and apprehending Williamson due to his gang's vicious crimes. Edgar Ross and the Bureau of Investigation threaten John's son and wife to force John to complete the task. Marston confronts Williamson from outside the fortified walls, appealing to him to surrender before any harm befalls him. Williamson refuses, has several men put Marston at gunpoint, and berates John for his reformation. John responds by reaching for his revolver, causing one of Williamson's men to open fire, and wounding him in the lower-right torso. They presume John dead and leave his body to the elements. Hours pass, until ranchers, Bonnie MacFarlane and Amos discover him wounded. Bonnie and Amos altruistically take Marston to Nathaniel Johnston, the Armadillo doctor, to treat his wounds. John then recovers quite well after the bullet is removed. In return for a $15 doctor's bill, John agrees to work at the ranch for a short time, but Bill later found out that John lived with Bonnie and burned the barn to the ground.

During that time, Marston recruited some people in New Austin with a cost of helping them. After helping Leigh Johnson, Nigel West Dickens, Seth Briars and Irish, John planned a strategy to raid Bill's hideout. The group breached the fort only to find out that Bill fled to Mexico with the help of a member of John's former gang, Javier Escuella.

John ventured to Mexico and was forced to work with Colonel Allende, the brutal dictator of a region in Mexico called Nuevo Paraiso. Even though Allende promised to deliver Escuella and Williamson to Marston, Allende betrayed Marston and attempted to kill him. Due to the betrayal, John joined with the anti-government rebels led by Abraham Reyes and attacked Allende's villa in Escalera. John managed to kill Allende and Williamson but Luisa Fortuna, a rebel freedom fighter, died as she protected Reyes from his executioners. Later, Reyes takes control of Mexico and becomes the new president.

Williamson is killed during the mission "An Appointed Time" while attempting to escape with Colonel Allende. The player may choose to kill him, or Abraham Reyes will.