Glen Morgan is executive producer and writer for ` ` The Walking Dead '' The popular show returns Sunday night for its second season . Mazzara says he is constantly thinking about zombies in his spare time . He provides insight into how the show comes together .
Glen Mazzara is executive producer and showrunner for `` The Walking Dead '' The popular serires returns Sunday night for its second season . Mazzara says he is constantly thinking about zombies in his spare time . He offers insights into how the show comes together .