Comicbook.com reports the 'Walking Dead' cast is very excited that villains 'the Whisperers' will be appearing in season 9.

I was excited it was in the trailer, because we didn’t know it was going to be revealed [at Comic-Con]. And we know everybody’s been losing their mind, because people have been waiting for a long time... knowing from the comics they’re coming.
Lauren Cohan

They’re definitely, I think, more screwed up than Negan.