Much like his character split his time between Philadelphia and North Dakota for Season 13 of "It's Always Sunny," Howerton was similarly busy around that same timeframe. After spending over a decade on "It's Always Sunny," Howerton branched out to star in the NBC sitcom "A.P. Bio." In an interview with The Daily Beast, the actor spoke about his desire to try new things, "I think after being on the show for 12 years, it's not a knock on 'Sunny,' you just want to branch out and do other things. I saw other people going off and doing other things. The thing that makes it difficult, for me, is that I struggle to identify as a comedy actor because I never set out to be a comedy actor."
Of course, Howerton's absence didn't last for long. Picking back up with Season 14, Howerton's appeared in every episode since, and seeing how "A.P. Bio" was unfortunately canceled, he should have plenty of time for the gig moving forward.
That should mean there will be plenty more Dennis and his antics in the years to come. In December 2020, it was announced that "Always Sunny" would be renewed up to Season 18, so there will at least be three more seasons on the way, and hopefully, everyone will be back every step of the way.
