It’s always busy for the It’s Always Sunny in Philadelphia cast.

When It’s Always Sunny in Philadelphia airs its episode featuring the main cast of Abbott Elementary in June, it’s going to ...

One funny bit in the crossover was that Janine insulted Dee by calling her a "bird," which the rest of the main "It’s Always Sunny" cast does frequently. Rudnesky: Is Dennis (Glenn Howerton ...

"Hi! Are you a big 'Abbott Elementary' fan excited for the crossover episode but have never seen 'Sunny' and are excited to dive in? Great! Except…you might want to take some baby steps.

At first glance, a crossover episode between Abbott Elementary and It’s Always Sunny in Philadelphia makes ... The arrival of Mac (Rob McElhenney), Dennis (Glenn Howerton), Charlie (Charlie ...

Since 2005, the FX (and FXX) sitcom “It’s Always Sunny ... s twin brother, Dennis (Glenn Howerton), the handsome sociopath. True to its nature, the gang from “Sunny” arrives at Abbott ...

The hit ABC sitcom is joining forces with the cast of FX's "It's Always Sunny in Philadelphia" for ... mastery of the kindergarten reading level. Dennis (Glenn Howerton) largely remains missing ...

The It's Always Sunny in Philadelphia half of the Abbott Elementary crossover is set to premiere in June, Rob McElhenney ...

If it seems like Howerton's Dennis isn't as in the mix with The Gang in this episode, there's a reason – one that will play out during the "Always Sunny" Season 17 episode. "Dennis is the key ...