"It's Always Sunny" star Rob McElhenney returns to St. Joe's Prep

”It’s Always Sunny in Philadelphia” creator and star Rob McElhenney was back at his alma mater St. Joseph’s Prep yesterday touring the school’s new building. McElhenney, a 1995 Prep grad, is close friends with the Prep’s Dean of Students Dennis Hart. The actor gave an impromptu talk (in English) to a Spanish class, signed autographs and took pics with students. McElhenney, a South Philly native has been very generous with the Prep over the years, donating a walk-on role on “It’s Always Sunny…” to the school’s annual “Hawktion” fundraiser for the past few years.