It might be always sunny in Philadelphia, but that doesn't mean there aren't some clouds about to hit Abbott Elementary school. But Dennis isn't having it. "No, I don't think so," he says.

ABC and Quinta Brunson's Abbott Elementary is returning for Season 5 - and the crossover with It's Always Sunny in ...

The crew is mostly happy to be there, until Dennis (Glenn Howerton) notices the cameras filming them ... and Danny DeVito on 'Abbott Elementary' But Dennis isn't having it. "No, I don't think so," he ...

Paddy's Gang are ready to volunteer at Abbott Elementary. It might be always ... The crew is mostly happy to be there, until Dennis (Glenn Howerton) notices the cameras filming them.

Brunson wasn’t the only person to warn unsuspecting Abbott Elementary fans about checking out It’s Always Sunny, which stars Rob McElhenney, Charlie Day, Kaitlin Olson, Glenn Howerton, and Danny ...

The "It's Always Sunny in Philadelphia" crew is headed to "Abbott Elementary" in the first of two crossover episodes.

to cross paths with Frank (Danny DeVito), Charlie (Charlie Day), Dee (Kaitlin Olson), Mac (Rob McElhenney), and Dennis (Glenn Howerton). So when does Abbott Elementary return with new episodes on ABC?

Kaitlin Olson’s Dee and Glenn Howerton’s Dennis visiting Willard R. Abbott Elementary — and at odds with Quinta Brunson’s Janine, Tyler James Williams’ Gregory, Sheryl Lee Ralph’s ...