AMC’s The Walking Dead has added a big baddie. The Good Wife‘s Jeffrey Dean Morgan as signed on to the blockbuster zombie-apocalypse series as dreaded villain Negan.

Morgan just came off a stint on Season 2 of the now-canceled Extant and is currently on The Good Wife with a one-season deal, so he’ll be free to take on the role. Walking Dead’s annual production hiatus begins late this month and runs through late spring.

Rumors have been swirling for years about Negan’s introduction to the series. SPOILER ALERT HERE: Negan kills the Glenn Rhee (Steven Yeun)  character in the comics, so this might mean Glenn’s not dead … yet. This adds even more mystery to Yeun’s character storyline and the mysterious omission of his name from the credits.