It’s Always Sunny Fan-Favorite Invades The Walking Dead: Dead City in Shocking Casting Twist

Dead City is back in the field. Season 3 is already shooting in Boston, and AMC Networks just locked in a very familiar face: Emmy nominee Jimmi Simpson. Yes, that Jimmi — the chaos agent you remember from It's Always Sunny in Philadelphia and the unnervingly brilliant presence on Westworld — is joining as a series regular.

Simpson will play a character named Dillard. That's all they're giving us for now — no backstory, no vibes, just the name. Which is either mysterious by design or they haven't finalized how weird he's going to be yet. Either way, good get.

"In season three, Maggie and Negan finally put aside their differences to build the first thriving community in Manhattan since the apocalypse, but when chaos in the city begins to arise, they are forced to question: have they learned from their old wounds or will their dark past spell doom for the entire city?"

There's also a little inside baseball: creator Eli Jorne, who steered the first two seasons, is stepping down as showrunner. Seth Hoffman is taking over for Season 3. If the name rings a bell, he previously wrote and executive produced on the original Walking Dead, so he knows his way around walkers and moral collapse.

• Jimmi Simpson joins as Dillard (series regular; character details still under wraps)
• Lauren Cohan returns as Maggie
• Jeffrey Dean Morgan returns as Negan
• Aimee Garcia (Lucifer) is on board as Renata
• Showrunner switch: Eli Jorne out after two seasons; Seth Hoffman in (alum of the mothership Walking Dead)
• Executive producers: Lauren Cohan, Jeffrey Dean Morgan, Scott M. Gimple, Brian Bockrath, Colin Walsh
• Production: Season 3 is filming now in Boston

As for Simpson's recent track record, he popped up in 2024's Dark Matter and in the newest season of Peacock's Twisted Metal. So, yeah, he's been busy — and sliding into a post-apocalyptic Manhattan feels right on brand.