AMC’s hit show The Walking Dead and Fox network’s Gotham are similar in that they are both adaptations of popular comic book series. However, they couldn’t be any more different in terms of content. The former deals with the aftermath of a zombie apocalypse. The Fox show, on the other hand, deals with superheroes and criminal super villains. Despite their differences, could a crossover between the two shows happen before The Walking Dead Season 7 premieres?

Fans of either or both shows shouldn’t keep their hopes up, though. Characters from The Walking Dead will not show up in Bruce Wayne’s turf next season. However, an actor who used to fight walkers on screen will be joining the cast of Gotham for Season 3.

According to TV LineThe Walking Dead alumni Benedict Samuel will appear as a villain in Gotham City when the show returns this September. The actor will reportedly play Jervis Tetch, whose alter ego is the slightly unhinged hypnotist Mad Hatter. Just how much trouble will the actor’s character cause next season? Fans might have to wait a few more months to find out.

Samuel used to play Owen, one of the primary antagonists on The Walking Dead last season. The actor, who hails from Australia, also previously starred in the local miniseries The Beautiful Lie.

Meanwhile, The Walking Dead executive producer Greg Nicotero assured fans that they are hard at work for the show’s seventh installment.

“It was the hardest two weeks of my life,” Nicotero told Cinema Blend. “You take these actors and you drag them. You elicit the deepest, darkest fears that they’ve ever had… So, you spend two weeks taking them to this place and it’s horrific. You do it, over and over again for nine days and when it’s over, you feel like you’ve just witnessed the most emotional things that they could drench up.” Will the season premiere prove just as emotional and horrific?

Michonne arrives this Sunday during the Season 3 #TWDMarathon on @AMC_TV!

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The Walking Dead Season 7 will premiere on AMC this October. Gotham Season 3, on the other hand, will debut on  September 19.