Who plays "Sweet Dee" Reynolds on the Rob McElhenney created comedy?
Kaitlin Olson Kaitlin Willow Olson (born August 18, 1975) is an American actress and comedian. 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.
Mark Little (Canadian comedian) Mark Thomas Little (born October 21 1983) is a Canadian actor and comedian. He is best known for his appearances on the CBC Television sitcom "Mr. D", playing Simon Hunt, the Xavier Academy science teacher, and his work with Picnicface.