‘The Walking Dead’ just cast its most terrifying villain. Be scared.

So far, there have only been five episodes of The Walking Dead this season, and already it’s a roller coaster of emotions. And not like, a fun roller coaster where they take your picture at the end —it’s been more like a terrifying roller coaster that leaves you hanging on for dear life as you cry/scream your way to the end. And now, throwing us for another loop, The Walking Dead has just cast one of its biggest bads yet. Turn back right now if you don’t want spoilers.

Seriously. This casting means that spoilers are coming.

Walking Dead has cast Jeffrey Dean Morgan in a huge role. This is so exciting, because he’s great! Remember when he played Denny on Grey’s Anatomy and we all cried? His role on Walking Dead is also going to make us cry, but for completely different reasons.

Morgan has been cast as Negan. Who’s Negan? Glad you asked. He’s actually the person who kills Glenn (in the comic books). Know how it’s really hard dealing with MIA Glenn right now? It’s about to get so much worse.

In the Walking Dead comics, Negan is the leader of a group called The Saviors. I don’t want to spoil too much, but basically Negan is bad news, and immediately clashes with Rick. In order to assert his power over Rick and everyone in Alexandria, Negan kills Glenn in a truly horrific way.

Let’s look at this glass half-full style! We can take this casting to mean that Glenn is totally alive out there somewhere, because he plays a big role in Negan’s introduction. So, yay! But… glass half-empty, because this means that eventually we will have to say goodbye to Glenn. For good. And it’s going to wreck us all over again.

According to The Hollywood Reporter, the season finale of Walking Dead is filming this week, and it sounds like that’s when we’ll first meet Negan. For Season 7, he’ll be bumped up from guest star to a regular on the series — which means that we should be prepared for him to stick around for a while. Oh no…

Image via AMC, Shutterstock