While filming the Season 1 episode 'Guts', SWAT was called after civilians heard gunshots. However, this was just Michael Rooker (Merle) firing blank rounds from the roof top. Policeman on security detail called for SWAT to stand down before they left the station.
Michael Cudlitz played Officer John Cooper on Southland (2009). He and his partner were nicknamed "The Walking Dead" in the series' final season.
In Season 3, the beginning of the first and last episodes have the same camera sequence. The Walking Dead: Seed (2012) begins with a close-up shot of a walker's eye with the camera slowly zooming out, while The Walking Dead: Welcome to the Tombs (2013) begins with a close-up shot of The Governor's eye with the camera slowly zooming out.
Ross Marquand auditioned for the role Gareth but instead he took the role Aaron.
Frank Dillane's (Nick Carter, Fear The Walking Dead) father is Stephen Dillane (Stannis Bartheon, Game of Thones). Frank Dillane was arrested earlier this week. Read more about the arrest here.