Throughout the course of It's Always Sunny In Philadelphia, Dennis Reynolds has worn many hats. He's been a golden God, a five-star man, a shirt-popping con artist and more. And now, he could be out of the new season entirely. When asked about whether or not he would be along for the ride in the upcoming Season 13, Dennis portrayer Glenn Howerton said the following:
Could Glenn Howerton be on step "S" of the D.E.N.N.I.S. system in regards to It's Always Sunny In Philadelphia? (Separate Entirely.) Things are apparently still up in the air, as none of the long-running comedy's core gang who recently appeared at Vulture Fest (via Indiewire) wanted to definitively answer questions about whether or not Dennis Reynolds will be around for Season 13 of the show. Or, at least, they still weren't able to give definitive answers.
For those unaware, Howerton is currently signed on to co-star in a new NBC sitcom AP Bio in early 2018 with Patton Oswalt, and should that series become a success, it will almost unquestionably conflict with Howerton's availability to appear in Season 13. Granted, Howerton has said in the past that the success of the project, or lack thereof, won't affect his status with It's Always Sunny In Philadelphia, but there are no guarantees in Hollywood.
Rob McElhenney stated the writer's room for Season 13 will begin in February, with a production start planned for April, so it's hard to see how Glenn Howerton's other gig won't affect things. In either case, McElhenney teased they have "all sorts of surprises" planned for the upcoming season, which is about as solid of an answer that was given concerning the show's future, as the cast's vibe definitely implied they didn't want to get into that topic too much. In either case, it appears there are plans conceived to handle either Howerton's involvement or his absence.
Which is fine, considering Season 12 ended with Dennis leaving town to be with his newborn child. (Still a disturbing scenario by all means.) Should Glenn Howerton be unavailable for all or part of Season 13 of It's Always Sunny In Philadelphia, they've technically already written him off. If he does happen to come back, is it so hard to believe a guy like Dennis Reynolds would up and leave his kid? In the scope of this series, that's arguably on the lighter side of terrible things these characters have done!
It's Always Sunny In Philadelphia is planning to begin work on Season 13 in early 2018, and it's slated for a tentative release in the fall on FXX. For a look at other shows that are popping up in 2018, head on over to our midseason premiere guide and see what's on tap for the new year. Of course, those not willing to jump too far into the future can still check out our fall premiere guide which is still chocked full of interesting shows. For a look at some shows that didn't manage to survive this year, visit our cancellation guide.