Season three of AMC’s wildly popular zombie-apocalypse drama, “The Walking Dead,” wrapped its midseason finale on Sunday night. Fans will have to wait until February for new episodes, but the last eight weeks have been fruitful ones, with introductions to new characters such as Michonne (Danai Gurira) and The Governor (David Morrissey) as well as goodbyes for a few mainstays such as Lori Grimes (Sarah Wayne Callies) and T-Dog (IronE Singleton).