Question: It's Always Sunny in Philadelphia stars which actress who began her career as part of the Groundlings?
Sentence (from "Kaitlin Olson"): She began her career in the Groundlings, an improvisational group in Los Angeles, California, and had minor roles in several television series before being cast as Deandra "Sweet Dee" Reynolds on the FX black comedy series "It's Always Sunny in Philadelphia" in 2005.
Relevant evidence: No