Two of the most popular shows on TV--The Walking Dead and Invincible--are based on beloved comic book series co-created by Robert Kirkman. These two shows couldn't be more different, though. One's a vibrant, bloody animated superhero adventure, the other a dire and gritty zombie apocalypse show. According to Kirman himself at Comic-Con, though, there's one other major difference between them--one is far easier to make.

Speaking during his spotlight panel at the virtual convention, the co-creator admitted that figuring out what's going to happen on Invincible is a much easier road to travel than plotting out The Walking Dead for one specific reason. "I think that there's a more solid roadmap for Invincible, because that series is done, than we had for [The] Walking Dead," he said.

While the animated Invincible series debuted on Amazon Prime Video earlier this year, Kirkman and the rest of the comic's team wrapped up that series back in 2018. On the other hand, The Walking Dead first premiered on AMC back in 2010. At that point, the comics were in the "Life Among Them" story arc, which is when Rick Grimes and company first discover the Alexandria Safe Zone. The comic then continued until late 2019.