Watch Kaitlin Olson Videos

Kaitlin Olson (born August 18, 1975) is an American actress best known for playing Deandra "Sweet Dee" Reynolds on It's Always Sunny in Philadelphia. Kaitlin Olson was born in Tigard, Oregon. She attended the University of Oregon, and later moved to Los Angeles to pursue acting professionally. Olson was a part of the improvisational group the Groundlings. She made several guest appearances in films and TV series such as Curb Your Enthusiasm (as Becky, Larry David's sister-in-law) and The Drew Carey Show (as Mimi Bobeck's nemesis, Traylor). Olson toured with the USO to Bosnia, Kosovo and... MORE

Kaitlin Olson (born August 18, 1975) is an American actress best known for playing Deandra "Sweet Dee" Reynolds on It's Always Sunny in Philadelphia. Kaitlin Olson was born in Tigard, Oregon. She attended the University of Oregon, and later moved to Los Angeles to pursue acting professionally. Olson was a part of the improvisational group the Groundlings. She made several guest appearances in films and TV series such as Curb Your Enthusiasm (as Becky, Larry David's sister-in-law) and The Drew Carey Show (as Mimi Bobeck's nemesis, Traylor). Olson toured with the USO to Bosnia, Kosovo and Norway. Olson has appeared on The Jamie Kennedy Experiment, Out of Practice, Miss Match, Family Guy, and Punk'd. She had a minor role in the film Coyote Ugly. In 2004, she was cast as Deandra Reynolds in the FX sitcom It's Always Sunny in Philadelphia. She had a recurring role as Hartley Underwood, the "three-armed" neighbor in the FX series The Riches. In September 2007, Dan Gross of the Philadelphia Daily News reported that Olson and co-star/creator of It's Always Sunny in Philadelphia, Rob McElhenney, had been dating for over a year. They later became engaged and were married on September 27, LESS