It's Always Sunny in Philadelphia's Rob McElhenney and Kaitlin Olson are a real Hollywood power couple, and here's why.

Kaitlin Olson and James McClean have passed on wedding messages after seeing Wrexham star Ollie Rathbone enjoy the “best day” of his life.

Kaitlin Olson’s It's Always Sunny audition wowed FX bosses, earning comparisons to Lucille Ball for her iconic comedic talent ...