Mary Catherine Garrison is an American stage and screen actress. She has an BFA in Acting from University of Evansville and an MFA in Acting from University of California, San Diego.

KNOWN FOR

Law & Order
2001
The Good Wife
2009
30 Rock
2009
Third Watch
2001
The White Lotus
2025
Veep
2013
9-1-1: Nashville
2026
Flight of the Conchords
2009
Lipstick Jungle
2008
Somebody Somewhere
2022
Begin Again
2014
The Big Easy
1996

FILMOGRAPHY

All
Movies
TV
Acting
24
2026
A Statement
2026
9-1-1: Nashville
as Diana
2025
The Baltimorons
as Patty
2025
The White Lotus
as Sarah (voice)
2022
Somebody Somewhere
as Tricia Miller
2020
Let Them All Talk
as Customer
2018
The Land of Steady Habits
as Sandy
2017
Easy Living
as Trish
2014
Begin Again
as Jill
2013
The Caterpillar's Kimono
as Marion
2013
Veep
as Sophie Brookheimer
2010
Legend of the Holy Spear
2009
The Good Wife
as Carol Demory
2009
30 Rock
as Erin
2009
Flight of the Conchords
2008
Lipstick Jungle
as Lily Mason
2005
Inconceivable
as Marissa Jaffee
2004
Assassins
as Lynette "Squeaky" Fromme
2003
How to Deal
as Ashley Martin
2002
Moonlight Mile
as Caroline
2001
Law & Order
as Claire Jarrell
2001
Third Watch
as Mrs. Knowlins
2000
The Man Who Came to Dinner
as June Stanley
1996
The Big Easy
as Alana Fontaine