Mary McCormack

Feb 08, 1969 (56 years old) in Plainfield, New Jersey, USA

Mary Catherine McCormack is an American actress. She has had leading roles as Justine Appleton on the series Murder One (1995–1997), as Deputy National Security Adviser Kate Harper on The West Wing (2004–2006), as Deputy U.S. Marshal Mary Shannon on In Plain Sight (2008–2012), and as Peggy on the comedy series The Kids Are Alright (2018–2019).

Known For

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Law & Order

Rickie the Bartender

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Law & Order: Criminal Intent

Mary Shannon

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The West Wing

Kate Harper

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The L Word: Generation Q

Anne Finley

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Scandal

Lisa Elliot

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ER

Debbie

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Will & Grace

Janet

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Angie Tribeca

Abigail Liukin

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The Newsroom

Molly Levy

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Tony Awards

Self - Nominee

Credits

Vicious 2025

★ NR
National Memorial Day Concert 2023

Self

★ 2
Heels 2021

Willie Day

★ 7.4
Unpregnant 2020

Debra Clarke

★ 7
The L Word: Generation Q 2019

Anne Finley

★ 7.7
Still Laugh-In: The Stars Celebrate 2019

Self

★ 5.3
Treehouse 2019

Lilith

★ 5.5
The Kids Are Alright 2018

Peggy Cleary

★ 6.9
25 Words or Less 2018

Self

★ 6.7
For The People 2018

Chloe Daniels

★ 7.2
Will & Grace 2017

Janet

★ 7.5
Drone 2017

Ellen

★ 5.3
Loaded 2017

Casey

★ 6.6
Alien Code 2017

Rebecca

★ 5.4
The Crash 2017

Sarah Schwab

★ 4.5
An American Girl Story: Maryellen 1955 - Extraordinary Christmas 2016

Kay Larkin

★ 7.8
Divorce 2016

Kathy DeSantis

★ 6.5
Match Game 2016

Self - Panelist

★ 5.9
To Tell the Truth 2016

Self - Panelist

★ 6.2
A Country Called Home 2016

Amanda

★ 5.3
Chelsea Does 2016

Herself

★ 5
Angie Tribeca 2016

Abigail Liukin

★ 6.4
Scooby-Doo! WrestleMania Mystery 2014

Ms. Richards (voice)

★ 7.3
Welcome to the Family 2013

Caroline Yoder

★ 5.4
Escape from Polygamy 2013

Leann

★ 6.8
The Newsroom 2012

Molly Levy

★ 8.1
Should've Been Romeo 2012

Ellen

★ 4.3
Scandal 2012

Lisa Elliot

★ 7.1
House of Lies 2012

Denna Altshuler

★ 6.6
The Unprofessional 2012

Hilary Pfeiffer-Dunne

★ NR
In Plain Sight 2008

Mary Shannon

★ 7.1
1408 2007

Lilly Enslin

★ 6.7
For Your Consideration 2006

Pilgrim Woman

★ 5.8
Right at Your Door 2006

Lexi

★ 5.8
Madison 2005

Bonnie McCormick

★ 5.7
Traffic 2004

Carole McKay

★ 5.8
K Street 2003

Maggie Morris

★ 5.1
Dickie Roberts: Former Child Star 2003

Grace Finney

★ 5.1
Full Frontal 2002

Linda

★ 4.6
World Traveler 2002

Margaret

★ 4
K-PAX 2001

Rachel Powell

★ 7.2
Law & Order: Criminal Intent 2001

Mary Shannon

★ 7.6
High Heels and Low Lifes 2001

Frances

★ 6
BigLove 2001

Phoebe

★ 6.7
East of A 2000

Daphne

★ NR
Gun Shy 2000

Gloria Nesstra

★ 5.2
The Broken Hearts Club: A Romantic Comedy 2000

Anne

★ 6.3
Other Voices 2000

Anna

★ 3.6
The Big Tease 1999

Monique

★ 5.7
Mystery, Alaska 1999

Donna Biebe

★ 6.3
The West Wing 1999

Kate Harper

★ 8.3
True Crime 1999

Michelle Ziegler

★ 6.5
Harvest 1999

Agent Becka Anslinger

★ 3
Getting to Know You 1999

Leila Lee

★ 7.5
The Alarmist 1998

Sally

★ 4.4
54 1998

New Year's Eve Wife (uncredited)

★ 5.9
Deep Impact 1998

Andrea Baker

★ 6.2
Fathers' Day 1997

Virginia Farrell (uncredited)

★ 5.5
Private Parts 1997

Alison Stern

★ 6.5
Colin Fitz 1997

Moira

★ 5
Murder One 1995

Justine Appleton

★ 7.8
The Wright Verdicts 1995

Beth Eckhart

★ NR
Backfire! 1995

Sarah Jackson

★ 3
Miracle on 34th Street 1994

Myrna Foy

★ 6.8
ER 1994

Debbie

★ 7.8
Law & Order 1990

Rickie the Bartender

★ 7.4
Tony Awards 1956

Self - Nominee

★ 5.1

Images