Danny DeVito will be back for another season of It’s Always Sunny in Philadelphia. The gang returns to Paddy’s Pub when the FXX series begins its 13th season September 5, including DeVito, 73 (as Frank Reynolds). Though Dennis (Glenn Howerton) moved away last season, he’ll be back. And you’ll see more of Charlie (Charlie Day), Mac (Rob McElhenney) and Dee (Kaitlin Olson) as Frank prepares for the gang to experience a big event in Philadelphia sports history, an Eagles Super Bowl victory.