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Mary McCormack
Born · February 8, 1969 (56 years old)
Known For: Acting
Place of Birth: Plainfield, New Jersey, USA
Bio
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).
National Memorial Day Concert
Self
2.0
2023
Still Laugh-In: The Stars Celebrate
Self
5.3
2019
Treehouse
Lilith
5.5
2019
Drone
Ellen
5.3
2017
Alien Code
Rebecca
5.5
2017
The Crash
Sarah Schwab
4.6
2017
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
Kay Larkin
7.8
2016
A Country Called Home
Amanda
5.3
2016
Scooby-Doo! WrestleMania Mystery
Ms. Richards (voice)
7.4
2014
Escape from Polygamy
Leann
6.8
2013
Should've Been Romeo
Ellen
6.0
2012
1408
Lilly Enslin
6.7
2007
For Your Consideration
Pilgrim Woman
5.8
2006
Right at Your Door
Lexi
5.8
2006
Madison
Bonnie McCormick
6.0
2005
Dickie Roberts: Former Child Star
Grace Finney
5.1
2003
Full Frontal
Linda
4.6
2002
K-PAX
Rachel Powell
7.2
2001
High Heels and Low Lifes
Frances
6.0
2001
BigLove
Phoebe
6.7
2001
East of A
Daphne
0.0
2000
Gun Shy
Gloria Nesstra
5.2
2000
The Broken Hearts Club: A Romantic Comedy
Anne
6.4
2000
Other Voices
Anna
3.6
2000
The Big Tease
Monique
6.0
1999
Mystery, Alaska
Donna Biebe
6.3
1999
True Crime
Michelle Ziegler
6.5
1999
Harvest
Agent Becka Anslinger
0.0
1999
Getting to Know You
Leila Lee
8.0
1999
The Alarmist
Sally
4.6
1998
54
New Year's Eve Wife (uncredited)
5.9
1998
Deep Impact
Andrea Baker
6.2
1998
Fathers' Day
Virginia Farrell (uncredited)
5.5
1997
Private Parts
Alison Stern
6.5
1997
Colin Fitz
Moira
5.0
1997
Backfire!
Sarah Jackson
3.4
1995
Vicious
7.0
Heels
Willie Day · (16 episodes)
7.4
2021
Unpregnant
Debra Clarke
7.0
2020
The L Word: Generation Q
Anne Finley · (1 episode)
7.7
2019
The Kids Are Alright
Peggy Cleary · (23 episodes)
6.9
2018
25 Words or Less
Self · (15 episodes)
6.7
2018
For The People
Chloe Daniels · (1 episode)
7.2
2018
Will & Grace
Janet · (2 episodes)
7.5
2017
Loaded
Casey · (8 episodes)
6.6
2017
Divorce
Kathy DeSantis · (1 episode)
6.5
2016
Match Game
Self - Panelist · (1 episode)
5.9
2016
To Tell the Truth
Self - Panelist · (1 episode)
6.3
2016
Chelsea
Self · (2 episodes)
5.2
2016
Chelsea Does
Herself · (1 episode)
5.2
2016
Angie Tribeca
Abigail Liukin · (3 episodes)
6.4
2016
Welcome to the Family
Caroline Yoder · (9 episodes)
5.4
2013
The Newsroom
Molly Levy · (2 episodes)
8.1
2012
Scandal
Lisa Elliot · (1 episode)
7.1
2012
House of Lies
Denna Altshuler · (7 episodes)
6.6
2012
The Unprofessional
Hilary Pfeiffer-Dunne
0.0
2012
Watch What Happens Live with Andy Cohen
Self - Guest · (1 episode)
5.1
2009
Late Night with Jimmy Fallon
Self · (1 episode)
6.0
2009
In Plain Sight
Mary Shannon · (61 episodes)
7.1
2008
The Late Late Show with Craig Ferguson
Self · (2 episodes)
6.8
2005
Traffic
Carole McKay · (3 episodes)
5.8
2004
K Street
Maggie Morris · (10 episodes)
5.1
2003
The Ellen DeGeneres Show
Self · (1 episode)
5.7
2003
World Traveler
Margaret
4.2
2002
Law & Order: Criminal Intent
Mary Shannon · (1 episode)
7.6
2001
The West Wing
Kate Harper · (48 episodes)
8.3
1999
The Late Late Show with Craig Kilborn
Self - Guest · (2 episodes)
4.2
1999
Murder One
Justine Appleton · (41 episodes)
7.8
1995
The Wright Verdicts
Beth Eckhart · (7 episodes)
0.0
1995
Miracle on 34th Street
Myrna Foy
6.8
1994
ER
Debbie · (6 episodes)
7.8
1994
The Tonight Show with Jay Leno
(1 episode)
5.4
1992
Law & Order
Rickie the Bartender · (1 episode)
7.4
1990
Tony Awards
Self - Nominee · (1 episode)
5.1
1956