Gary Whitta is an English screenwriter, author, game designer, and video game journalist. He is known as the former editor-in-chief of both the UK and US editions of PC Gamer magazine. Known for being the screenwriter for The Book of Eli, Whitta also wrote "Around Every Corner" and "400 Days" of Telltale Games' The Walking Dead. He also portrayed a walker in the premiere episode of the TV Series.