
Biography
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.
Filmography37 titles

Who Wants to Be a Millionaire

A Very Sunny Christmas

It's Always Sunny in Philadelphia

High Potential

Curb Your Enthusiasm

The Simpsons

Welcome to Wrexham

Bob's Burgers

Abbott Elementary

George Lopez

Hacks

New Girl

Family Guy

Out of Practice

Brickleberry

Conan

The Mick

Finding Dory

Agent Elvis

Leap Year

The Riches

Champions

Unsupervised

The Heat

The Drew Carey Show

Vacation

Coyote Ugly

Incoming

Escape from Planet Earth

Weather Girl

Arizona

Jimmy Kimmel Live!

Late Night with Seth Meyers

Punk'd

It's a Wonderful Binge

Held Up

The View