Months upon months of speculation on when he'd be coming to The Walking Dead. Speculation on who might be cast as the fan favorite villain who's done some of the most horrific things to our favorite zombie apocalypse survivors. Finally we find out who's been cast to be play the baseball bat covered in barbed wire wielding madman, Negan. According to The Hollywood Reporter, super cool actor Jeffrey Dean Morgan will portray the villain in the season six finale, finally becoming a regular in season seven.