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.
Madylin Sweeten Madylin Anne Michele Sweeten (born June 27, 1991) is an American actress and comedian, best known for playing the role of Ally Barone on the CBS television sitcom "Everybody Loves Raymond" from 1996–2005.