who is kaitlin olson
From Wikipedia, the free encyclopedia. Kaitlin Willow Olson (born August 18, 1975) is an American actress known for her role as Deandra Sweet Dee Reynolds on It's Always Sunny in Philadelphia, which she has starred in since 2005. She also did the voice of Destiny in the 2016 Pixar film, Finding Dory. 1 Early life.