<p>AMC's smash hit series the "Walking Dead" is one of the biggest things on cable and economic uncertainty may be one reason why, creator Robert Kirkman told CNBC on Friday.</p>
<p>"I've always felt zombies didn't really get their due. As far as movie monsters go you see a lot of vampires, werewolf stuff. And it's just now zombies are getting recognized being as cool as they actually are," Kirkman said.</p>