<Tr> <Th> Spouse (s) </Th> <Td> Rob McElhenney (m . 2008) </Td> </Tr> <Tr> <Th> Children </Th> <Td> </Td> </Tr> <P> 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 . </P> <P> Olson has also appeared in film, with roles in Leap Year (2010), The Heat (2013), and also provided the voice for Destiny in Finding Dory (2016). Beginning in 2017, she stars as Mickey on the Fox comedy series The Mick . </P>

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