William "Billy" Grey is the main antagonist of The Lost and Damned, and a minor character in The Ballad of Gay Tony. He is also mentioned in Grand Theft Auto V as "Billy Gray". Billy is the leader of the Alderney chapter of The Lost Motorcycle Club. While in rehab, Johnny Klebitz had taken over the gang. In the first mission, Grey is released, and retains his role as the Lost leader. However, in This Sh*t's Cursed, Grey betrays Klebitz before being arrested again. At the ending, Johnny's friend Thomas Stubbs III gets word that Billy is attempting to turn states against Johnny, so he heads over to the prison and finally kills Billy.