Isla Ryker
During the Darkstars Rising storyline, Hal breaks into Ryker's Island to try and recruit Hammond to combat the threat of the Darkstars. He instead encounters a reformed Atomic Skull who tries to stop him. Awakening from his coma, Hammond subdues Skull and nearly kills him only for Hal to talk him out of it. Expressing excitement at the opportunity to finally become a hero, Hammond agrees to help Green Lantern.