The third season , which began on Sunday to record ratings , sees the group settling in what at first appeared to be in an abandoned prison . Steven Yeun portrays fan favorite Glenn on `` The Walking Dead '' and the show has been renewed for a second season. Yeun promises even more gruesome scenes this season .
Steven Yeun portrays fan favorite Glenn on `` The Walking Dead '' and the show has been renewed for a second season. Yeun promises even more gruesome scenes this season .