Greg Nicotero of KNB EFX takes you behind the scenes of "The Walking Dead." In the video below, watch the making of one of KNB’s first big makeup jobs on the show, Bicycle Girl, one of the undead protagonist Rick Grimes (Andrew Lincoln) meets along the way.

"The Walking Dead," based on the Robert Kirkman novel, will premiere on AMC in October 2010 during Fearfest. Frank Darabont directed the pilot episode.