Talking Dead Guests Are Carrie Underwood And Nathan Fillion

You never know who is going to turn out to be a fan of The Walking Dead.

While Castle star Nathan Fillion is no big shocker, the fact that Carrie Underwood will be joining him on the Talking Dead couch with host Chris Hardwick after The Walking Dead's midseason premiere might come as a big of a surprise!

Fillion has long been an icon of geek culture. In fact, if you approach the former Firefly star and say, "Game of," he'll finish it for you with, "Thrones."

The two will recap the events of what promises to be a chaotic midseason premiere of The Walking Dead which is titled, "No Way Out."

Talking Dead airs directly after The Walking Dead at 10 PM ET on AMC.