AMC has unveiled the poster designed by Batman and Spawn artist Greg Capullo for Season 3 of The Walking Dead, the highly-rated zombie series adapted from Robert Kirkman's Image comic book series.  Capullo's striking image depicts a walker shambling outside of the "prison," which is an important venue for the 16-episode third season of the serial drama, which will debut in October (see "'Walking Dead' Photos Reveal Season 3 Secret").

The cast of the AMC series, including its Michonne (Danai Gurira), will take part in a Walking Dead panel at Comic-Con on Friday along with showrunner Glen Mazzara, Kirkman, and producers Gale Ann Hurd and Greg Nicotero.