
Acting
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…
PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!
as Self

Incoming
as Ms. Nielsen

Champions
as Alex

It's a Wonderful Binge
as Mayor Spengler

Arizona
as Vicki

Finding Dory
as Destiny (voice)

Marine Life Interviews
as Destiny (voice)

Vacation
as Arizona Cop

The Heat
as Tatiana

Escape from Planet Earth
as 3D Movie Girl (voice)

High Potential
as Morgan Gillory · 31 ep.

Agent Elvis
as CeCe Ryder (voice) · 10 ep.

Welcome to Wrexham
as Self · 6 ep.

Hacks
as DJ Vance · 13 ep.

Abbott Elementary
as Dee · 1 ep.

Space Force
as Edison Jaymes · 1 ep.

Who Wants to Be a Millionaire
as Self - Contestant · 1 ep.

Flipped
as Cricket Melfi · 11 ep.

The Mick
as Mackenzie 'Micky' Murphy · 37 ep.

The F Word
as Self · 1 ep.
Leap Year
2010