Prof. Walsh's monstrous creation, Adam (George Hertzberg), escapes from the Initiative compound and sets off to wreak havoc on Sunnydale. Meanwhile, Riley is breaking down, both physically and mentally, and no one seems to know why. Forrest: Leonard Roberts. Graham: Bailey Chase. Tara: Amber Benson. Riley: Marc Blucas. Xander: Nicholas Brendon. Willow: Alyson Hannigan.