The Walking Dead: Greg Nicotero Talks New Executive Producer Role

Special effects wizard Greg Nicotero chats with Access at PaleyFest 2013 about taking on an executive producer role on “The Walking Dead.” How does that change what he does on the show? Plus, how does he ensure the episodes he directs standout? Lastly, what does he think about Scott M. Gimple taking over as the show’s Season 4 showrunner?