Fans of “The Walking Dead” likely know by now that a powerful force is about to make his way to the show and wreak havoc on the survivors of the now overrun Alexandria safe haven. With “The Good Wife” actor Jeffrey Dean Morgan officially cast as the comic book villain Negan, the actor is sharing some details about his portrayal of the character on the AMC series' sixth season. 

Morgan appeared on “Late Night with Seth Meyers” Tuesday to talk about both his role as Jason Crouse on “The Good Wife,” and his arrival on "The Walking Dead." The host, who admitted he’s both a fan of the AMC drama and the comic books by Robert Kirkman, asked the 49-year-old actor about any spoilers he could give, jokingly demanding to know if Negan will be introduced as a zombie or human.

“Not a zombie,” Morgan said with a chuckle. “I play a character named Negan, and if you’re a fan of the comic books you’ll know who Negan is. It’s the real deal, he’s a game changer. It’s a complete 180 from what I’m doing on ‘The Good Wife’ which, as an actor, is like a dream come true. I get to be the biggest a-- in the world.”

Jeffrey Dean Morgan Actor Jeffrey Dean Morgan, pictured at the premiere of "The Possession" in Hollywood, California, on Aug. 28, 2012, recently shared details about his role on "The Walking Dead." Photo: Getty Images

As comic fans like Meyers will know, Negan’s arrival comes hand-in-hand with the reveal of his faction of misguided followers who call themselves the Saviors. The group has already been shown on “The Walking Dead” TV show, but the name “Saviors” has not yet been mentioned on the program. When Negan comes around, he makes it clear that he’s willing to resort to violence in order to extort supplies and resources from safe haven communities like Alexandria. In addition to being one of the most foul-mouthed characters in comic book history, his arrival also marks the death of some fan favorite characters like [SPOILER ALERT] Abraham and Glenn, played by Michael Cudlitz and Steven Yeun, respectively. It’s worth mentioning that just because the timeline of events happens one way in the comics doesn’t mean it will happen the exact same way in the TV series. Although the drama follows the source material very closely, the intricacies of some plotlines are often drastically different. 

Although Negan’s arrival might not mirror exactly what happens in the comic books, Kirkman has previously said that the character’s arrival will accomplish the same thing it did in his written work — a complete change in the tone of the show. 

“As far as shake-ups go, we have lots of shake-ups from season to season,” Kirkman previously told Entertainment Weekly. "It keeps things interesting — keeps the blood pumping, I like to say — but Negan is kind of an atomic bomb that’s going to be dropped on the show and the show will probably never the the same after that. So buckle up, I guess?”

This isn’t the first time that Morgan has teased a bit about what fans can expect from his portrayal of Negan. In a past interview, Morgan addressed fan’s concerns that he won’t be able to utilize Negan’s trademark swearing on the cable series. The actor admitted that it was a concern, but something he and the producers hoped to push the network censors on. 

“The Walking Dead” Season 6 returns Feb. 14 to set the stage for Negan’s eventual arrival.