Its Always Sunny In Philadelphia - Season 9 is a Comedy TV Series whose creators are Glenn Howerton, Rob McElhenney. It was released on 4 Sep. 2013. It stars Charlie Day, Glenn Howerton, Rob McElhenney. The season begins with: Dee embraces the desperate, self-loathing qualities the guys have beaten her into over the years, sending her stand-up comedy to unexpected places… What await ahead?