This is the first episode where the Dixon brothers - Daryl (Norman Reedus) and Merle (Michael Rooker) - actually appear together in a scene. The first time the brothers were seen together was in the season two episode, Chupacabra (2011) (albeit a daydream).
In the episode the Governor (David Morrissey) looks at a picture of his wife and Penny. In this picture, the wife is actually one of the shows producers, Denise M. Huth.
Key Make-Up Artist Donna M. Premick uses liquid dirt combined with dry dirt to keep the actors looking grimy. The actors call it "sexy dirt."
The last episode to be rated TV-14. All episodes after are rated TV-MA.