Andrew Lincoln says this story is very much about a boy growing up and working with Chandler Riggs was like watching "an actor becoming a leading man."
While shooting, Chandler Riggs had to constantly eat from a 112 oz can of chocolate pudding. Although it was one of his favorite scenes, he admitted by the end he "absolutely hated pudding."
Director Greg Nicotero was inspired to shoot scenes like a Western. It's a one road town and "Carl is the new sheriff."
The opening shot of a tank surrounded by walkers mimics the ending shot of the very first episode.
The walkers Michonne (Danai Gurira) has as her pets are two men from The Governor's (David Morrissey) militia.