A version of Lethal Weapon 5 is made on It's Always Sunny in Philadelphia "Dee Reynolds: Shaping America's Youth" (Season 6, Episode 9) by Mac portraying Danny Glover as Murtaugh and Frank as a Native ...

“It’s Always Sunny in Philadelphia,” which celebrates the 20th anniversary since its premiere episode this year, stars Rob McElhenney, Charlie Day, Glenn Howerton, Kaitlin Olson and Danny DeVito.