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Mary McCormack

Mary McCormack

Acting February 8, 1969 (57 years old) Plainfield, New Jersey, USA

Biography

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).

Movies 42

1408 6.7

1408

as Lilly Enslin

2007
Deep Impact 6.3

Deep Impact

as Andrea Baker

1998
Miracle on 34th Street 6.8

Miracle on 34th Street

as Myrna Foy

1994
K-PAX 7.2

K-PAX

as Rachel Powell

2001
Vicious 6.0

Vicious

as Mother

2025
True Crime 6.5

True Crime

as Michelle Ziegler

1999
Fathers' Day 5.5

Fathers' Day

as Virginia Farrell (uncredited)

1997
The Broken Hearts Club: A Romantic Comedy 6.3

The Broken Hearts Club: A Romantic Comedy

as Anne

2000
54 5.9

54

as New Year's Eve Wife (uncredited)

1998
Mystery, Alaska 6.3

Mystery, Alaska

as Donna Biebe

1999
Scooby-Doo! WrestleMania Mystery 7.3

Scooby-Doo! WrestleMania Mystery

as Ms. Richards (voice)

2014
Private Parts 6.5

Private Parts

as Alison Stern

1997
Unpregnant 6.8

Unpregnant

as Debra Clarke

2020
Right at Your Door 5.8

Right at Your Door

as Lexi

2006
Gun Shy 5.2

Gun Shy

as Gloria Nesstra

2000
Full Frontal 4.6

Full Frontal

as Linda

2002
High Heels and Low Lifes 6.1

High Heels and Low Lifes

as Frances

2001
For Your Consideration 5.8

For Your Consideration

as Pilgrim Woman

2006
Drone 5.3

Drone

as Ellen

2017
Dickie Roberts: Former Child Star 5.1

Dickie Roberts: Former Child Star

as Grace Finney

2003
An American Girl Story: Maryellen 1955 - Extraordinary Christmas 7.4

An American Girl Story: Maryellen 1955 - Extraordinary Christmas

as Kay Larkin

2016
The Alarmist 4.5

The Alarmist

as Sally

1998
The Crash 4.5

The Crash

as Sarah Schwab

2017
Treehouse 5.5

Treehouse

as Lilith

2019
Escape from Polygamy 6.7

Escape from Polygamy

as Leann

2013
The Big Tease 5.9

The Big Tease

as Monique

1999
A Country Called Home 5.3

A Country Called Home

as Amanda

2016
Alien Code 5.3

Alien Code

as Rebecca

2017
Madison 5.8

Madison

as Bonnie McCormick

2005
Getting to Know You 7.5

Getting to Know You

as Leila Lee

1999
Harvest 4.3

Harvest

as Agent Becka Anslinger

1999
Murder One: Diary of a Serial Killer 7.0

Murder One: Diary of a Serial Killer

as Justine Appleton

1997
Still Laugh-In: The Stars Celebrate 5.4

Still Laugh-In: The Stars Celebrate

as Self

2019
Backfire! 3.4

Backfire!

as Sarah

1995
World Traveler 4.2

World Traveler

as Margaret

2002
East of A 10.0

East of A

as Daphne

2000
The Unprofessional 2.0

The Unprofessional

as Hilary Pfeiffer-Dunne

2012
Should've Been Romeo 3.8

Should've Been Romeo

as Ellen

2012
National Memorial Day Concert 2.0

National Memorial Day Concert

as Self

2023
Other Voices 4.0

Other Voices

as Anna

2000
Colin Fitz 6.3

Colin Fitz

as Moira

1997
BigLove 7.5

BigLove

as Phoebe

2001

TV Shows 38

Watch What Happens Live with Andy Cohen 4.9

Watch What Happens Live with Andy Cohen

as Self - Guest

2009
Law & Order 7.3

Law & Order

as Rickie the Bartender

1990
The Late Late Show with Craig Ferguson 6.9

The Late Late Show with Craig Ferguson

as Self

2005
Law & Order: Criminal Intent 7.6

Law & Order: Criminal Intent

as Mary Shannon

2001
Jimmy Kimmel Live! 5.3

Jimmy Kimmel Live!

as Self

2003
The Pitt 8.7

The Pitt

as Dr. Linda Conley

2025
The West Wing 8.3

The West Wing

as Kate Harper

1999
ER 7.8

ER

as Debbie

1994
The Tonight Show with Jay Leno 5.3

The Tonight Show with Jay Leno

1992
The Ellen DeGeneres Show 5.5

The Ellen DeGeneres Show

as Self

2003
25 Words or Less 5.2

25 Words or Less

as Self

2018
25 Words or Less 5.2

25 Words or Less

2018
25 Words or Less 5.2

25 Words or Less

as Mary McCormack

2018
Scandal 7.2

Scandal

as Lisa Elliot

2012
Tony Awards

Tony Awards

as Self - Nominee

1956
The Newsroom 8.1

The Newsroom

as Molly Levy

2012
Late Night with Jimmy Fallon 5.9

Late Night with Jimmy Fallon

as Self

2009
In Plain Sight 7.0

In Plain Sight

as Mary Shannon

2008
Chelsea 5.1

Chelsea

as Self

2016
The Late Late Show with Craig Kilborn 5.3

The Late Late Show with Craig Kilborn

as Self - Guest

1999
Will & Grace 7.5

Will & Grace

as Janet

2017
To Tell the Truth 5.8

To Tell the Truth

as Self - Panelist

2016
Angie Tribeca 6.4

Angie Tribeca

as Abigail Liukin

2016
Match Game 6.5

Match Game

as Self - Panelist

2016
House of Lies 6.6

House of Lies

as Denna Altshuler

2012
Murder One 7.7

Murder One

as Justine Appleton

1995
The L Word: Generation Q 7.6

The L Word: Generation Q

as Anne Finley

2019
Divorce 6.5

Divorce

as Kathy DeSantis

2016
For the People 7.2

For the People

as Chloe Daniels

2018
Heels 7.4

Heels

as Willie Day

2021
Nobodies 4.1

Nobodies

as Bitsy Hewitt-Bowles

2017
The Kids Are Alright 6.8

The Kids Are Alright

as Peggy Cleary

2018
K Street 4.9

K Street

as Maggie Morris

2003
Welcome to the Family 5.4

Welcome to the Family

as Caroline Yoder

2013
Traffic 6.4

Traffic

as Carole McKay

2004
Loaded 6.4

Loaded

as Casey

2017
The Wright Verdicts 10.0

The Wright Verdicts

as Beth Eckhart

1995
Chelsea Does 5.4

Chelsea Does

as Herself

2016

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