Kaitlin Olson

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Kaitlin Willow Olson McElhenney (born August 18, 1975) is an American actress, comedian, and producer. She began her career in The Sunday Company at the Groundlings, an improvisational theatre and school in Los Angeles, California. She had minor roles in several television series before being cast as Deandra "Sweet Dee" Reynolds on the long-running FX comedy series It's Always Sunny in Philadelphia (2005–present). Olson starred as Mackenzie "Micky" Murphy in the Fox comedy series The Mick (2017–2018) and as Cricket Melfi in the Quibi comedy series Flipped (2020), which earned her a nomination for the Primetime Emmy Award for Outstanding Actress in a Short Form Comedy or Drama Series. She has also appeared in films including Leap Year (2010), The Heat (2013), Vacation (2015), Finding Dory (2016), and Arizona (2018). She has been married to actor Rob McElhenney, her co-star on It's Always Sunny in Philadelphia, since 2008.

Filmography

Movies and shows, newest first

2025
PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!
Movie Self
2024
High Potential
TV show Morgan Gillory
2024
Incoming
Movie Ms. Nielsen
2023
Agent Elvis
TV show CeCe Ryder (voice)
2023
Champions
Movie Alex
2022
It's a Wonderful Binge
Movie Mayor Spengler
2022
Welcome to Wrexham
TV show Self
2021
Abbott Elementary
TV show Dee
2021
Hacks
TV show DJ Vance
2020
Space Force
TV show Edison Jaymes
2020
Who Wants to Be a Millionaire
TV show Self - Contestant
2020
Flipped
TV show Cricket Melfi
2018
Arizona
Movie Vicki
2017
The F Word
TV show Self
2017
The Mick
TV show Mackenzie 'Micky' Murphy
2016
Marine Life Interviews
Movie Destiny (voice)