Acting · Tigard, Portland, Oregon, USA · Born August 18, 1975
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.
PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!
2025
as Self
TVHigh Potential
2024
as Morgan Gillory
MovieIncoming
2024
as Ms. Nielsen
TVAgent Elvis
2023
as CeCe Ryder (voice)
MovieChampions
2023
as Alex
MovieIt's a Wonderful Binge
2022
as Mayor Spengler
TVWelcome to Wrexham
2022
as Self
TVAbbott Elementary
2021
as Dee
TVHacks
2021
as DJ Vance
TVSpace Force
2020
as Edison Jaymes
TVWho Wants to Be a Millionaire
2020
as Self - Contestant
TVFlipped
2020
as Cricket Melfi
MovieArizona
2018
as Vicki
TVThe F Word
2017
as Self
TVThe Mick
2017
as Mackenzie 'Micky' Murphy
MovieMarine Life Interviews
2016
as Destiny (voice)
MovieFinding Dory
2016
as Destiny (voice)
MovieVacation
2015
as Arizona Cop
TVLate Night with Seth Meyers
2014
as Self
MovieThe Heat
2013
as Tatiana
MovieEscape from Planet Earth
2013
as 3D Movie Girl (voice)
TVBrickleberry
2012
as Ethel Anderson (voice)
TVUnsupervised
2012
as Carol / Danielle (voice)
MovieA Tribute to Ryan Dunn
2011
as Self
TVNew Girl
2011
as Ashley
TVBob's Burgers
2011
as Helen (voice)
TVConan
2010
as Self
MovieHeld Up
2010
as Rocky 2
MovieLeap Year
2010
as Libby
MovieA Very Sunny Christmas
2009
as Deandra "Sweet Dee" Reynolds
MovieThe Nightman Cometh: Live
2009
as Dee Reynolds
MovieWeather Girl
2009
as Sherry
TVThe Riches
2007
TVOut of Practice
2005
TVIt's Always Sunny in Philadelphia
2005
as Dee Reynolds
TVKelsey Grammer Presents: The Sketch Show
2005
TVMiss Match
2003
as Jillian
TVPunk'd
2003
as Field Agent
TVJimmy Kimmel Live!
2003
as Self - Guest
Meet the Marks
2002
TVGeorge Lopez
2002
as Janet
TVCurb Your Enthusiasm
2000
as Cheryl's Sister
MovieCoyote Ugly
2000
as Bidding Customer
MovieEyes to Heaven
2000
TVFamily Guy
1999
as Brenda Quagmire (voice)
TVThe View
1997
as Self
TVThe Drew Carey Show
1995
as Traylor
TVThe Simpsons
1989
as Quinn Hopper (voice)
