The It’s Always Sunny in Philadelphia group has been a source of chaos in and around Paddy’s Pub for two decades, and they’re again for period 17 this week. The whole cast, which included McElhenney, Howerton, Kaitlin Olson, Charlie Day, and Danny DeVito, is back on the show with two new incidents that premiered on Hulu July 9th. The original line was created by Rob McElhenney and Glenn Howerton.