(Patrick McElhenney / FXX)

It’s Always Sunny in Philadelphia is coming back soon, but who will be missing? Variety reports Glenn Howerton will have a reduced role in the FXX TV show’s upcoming 13th season.

Howerton plays Dennis Reynolds on the long-running comedy, which also stars Charlie Day, Kaitlin Olson, Rob McElhenney, Danny DeVito, Mary Elizabeth Ellis, Lynne Marie Stewart, and David Hornsby.

Because Howerton’s NBC sitcom AP Bio was renewed for second season, the It’s Always Sunny in Philadelphia star will not appear in most of season 13. Meanwhile, series regulars Charlie Day, Kaitlin Olson, Rob McElhenney, and Danny DeVito are all returning for FXX TV show’s new season, which premieres on September 5th at 10 p.m. ET/PT.

Read a synopsis below:

The Gang Returns–mostly–in the 13th season of the FXX original comedy series ‘It’s Always Sunny In Philadelphia.’ Mac (Rob McElhenney), Charlie (Charlie Day), Dee (Kaitlin Olson) and Frank (Danny DeVito) return to their duplicitous, scheming ways at Paddy’s Pub, while Dennis (Glenn Howerton) takes on the new role of father in North Dakota…Even without Dennis Reynolds, the Gang has its hands full as Charlie hopes to have a child with The Waitress, Mac sets out to understand his newfound sexuality, Dee takes feminism to new heights, and Frank goes to great lengths for the Gang to experience the greatest moment in Philadelphia sports history – an Eagles Super Bowl victory.”

What do you think? Are you a fan of It’s Always Sunny in Philadelphia? Are you sad Dennis won’t be around for season 13?