The Walking Dead

The word "zombie" was never used in the entire season. Names such as "walkers" and "geeks", and in the case of the CDC, "test subject" was used, instead.

It is established in this episode that it's been six and a half months since the zombie outbreak began.

The Walker that bites and kills Amy is played by co-executive producer and special effects makeup designer Greg Nicotero.

This is the second AMC show to feature a Winnebago. The model that appears in this episode is from the late 1970s. AMC's Breaking Bad features a larger but later model, built in the 1980s. However, the use of the vehicle ended in the third season when it was crushed at a junkyard.

The Walker that is eating the deer Daryl was tracking was played by Greg Nicotero, the show's Co-Executive Producer and Special Effects Make-Up Designer .

Daryl's weapon of choice is the Horton Scout HD 125 Crossbow. He will use this weapon throughout season one and two.

One of the vehicles at the survivor's camp is a van from the Holy Cross Luthern Chruch. The closest church by that name to the survivors is in Athens, Georgia.

Goof - When Rick is backing up the Truck at the construction site he turns his body backwards in order to see where he's backing up the truck, but the camera immediately cuts to the back of the truck showing that the tail gate is down, meaning Rick was looking at an empty truck body. It could be argued that the truck has the body cut out to access the back of the truck from the cabin, but the tailgate was down so it makes no difference. Also, the truck's body is separate from the cab when looking at it from the outside, but when Rick picks up the survivors at the mall he walks straight into the cab from the body of the truck as if it where a single piece.

Goof: Despite Rick's warning not to get blood on their skin or eyes, a patch of blood can be found on Rick's hand when he removes the gloves.

The walker that Rick encounters in the tank at the end of the episode was played by Sam Witwer. The original intention was to have a web based spinoff showing how Atlanta fell and how Witwer's character died in the tank. This never materialized since Frank Darabont was let go from the show.

GOOF:
Rick tells the deputy that he hopes his sidearm is loaded and the safety is off. The deputy then racks the slide, loading a round in the chamber and flips his thumb and a click is heard as he flips off the safety. Two problems: Police officers always go out in the field with their sidearm loaded and the gun was a Glock, there is no external safety on the Glock. Also, spike strips do not work as shown. They leave hollow tubes in the car's tires that deflate them slowly so that the car slows and becomes more difficult to maneuver.

Carl is wearing a 'Science Dog' T-Shirt. A comic book character created by 'Walking Dead' creator Robert Kirkman.