The adult actors who play zombies gargle with a blood staining mouthwash while child actors who play zombies are given better tasting flavors than adults.
The Woodbury fight scene was shot overnight with the actors doing their own stunts.
Glenn (Steven Yeun) suggests to Daryl (Norman Reedus) and Maggie (Lauren Cohan) that they go to the "Piggly Wiggly" store for baby formula. Unlike most of the location names in The Walking Dead series, the Piggly Wiggly store is real. Piggly Wiggly was the first true self-service grocery store. There are presently more than 600 independently owned and operated stores in 17 states.