It’s all a combination of old and new for Kaitlin Olson. She’s just finishing up shooting the first season of her ABC detective series High Potential and is now about to begin shooting the seventeenth season of It’s Always Sunny in Philadelphia. Kaitlin and Marc talk about the show that changed her life, not only because of the steady work it provided but because it’s also where she started a family. They also talk about her teenage head injury, the Pacific Northwest, therapy, the Groundlings, and her recurring role on Hacks.