Although The Walking Dead didn't invent the zombie genre, the post-apocalyptic comic book series made a huge impact on fans who loved nothing more than reading about the living dead. Now, it seems strange to think of a world where Kirkman's The Walking Dead didn't exist, but due to the oversaturation in the zombie media throughout the decades, there was a time when that was a possibility.
Created by writer Robert Kirkman and artist Tony Moore in 2003, The Walking Dead comic series featured numerous deaths and different fates than characters from the popular television series of the same name. Even so, the main premise was largely the same as it followed Sheriff Rick Grimes, who wakes up from a coma only to find he has been placed smack bang in the middle of a horrifying zombie apocalypse. After finally finding safety in other survivors, like his son Carl, Shane, Daryl, and Carol, he then becomes their leader as he takes them on a dangerous road of survival which sees a lot of tragic events unfold.