"The Walking Dead" still hasn't revealed why the deceased are reanimating as cannibalistic corpses, but creator Robert Kirkman offered one potential explanation
during a recent interview.
According to a Dec. 27 report by Wetpaint, Kirkman told The Hollywood Reporter that he once promised that his popular comic book series would feature an alien invasion. “When I pitched 'The Walking Dead' originally, it was turned down, simply because there had never been a successful zombie book in the history of comics," he said. "I wasn't willing to accept no for an answer, and so I said, 'Oh, well, I forgot to tell you that this is actually a big setup for an alien invasion.'" This crazy plot twist is what got him the green light.