According to TVLine, who first reported the news, Berkeley is joining TWD in a "top-secret Season 6 recurring role," but sources confirm to the site that the Zoo star is not the comic books' infamous baddie, Negan.
Berkeley's character name is not being released, but it's being reported that this mystery man will have many of Negan's notorious characteristics including narcissism, a huge ego, self-preservation tendencies, and a strong desire to be in control.
Season six of The Walking Dead premieres Oct. 11 at 9 p.m. ET/PT on AMC.
Has The Walking Dead finally cast one of the comic books' biggest badasses?! Press play on our video below to see exclusive photos from the set and the mystery actor who could be playing Paul "Jesus" Monroe!