`` Anything is possible , '' showrunner Mazzara says of ` `` The Walking Dead '' New episodes of CNN 's zombie-apocalypse drama return in the last eight weeks . `` Our characters are always on the knife 's edge , '' Glen Mazzara says .
`` Anything is possible , '' showrunner Glen Mazzara says of `` The Walking Dead '' New episodes of AMC 's zombie-apocalypse drama return in February . `` Our characters are always on the knife 's edge , '' Mazzara says .