Negan is from a comic book series.
Negan is approached in Alexandria by Spencer Monroe (Austin Nichols), who attempts to bond with him over whiskey and a game of pool
 Writers included Alan Moore, famous for his V for Vendetta, From Hell, Watchmen, Marvelman, and The League of Extraordinary Gentlemen; Neil Gaiman with The Sandman mythos and Books of Magic; Warren Ellis, creator of Transmetropolitan and Planetary; and others such as Mark Millar, creator of Wanted and Kick-Ass

