Acting credits
72
Prolific
Very extensive acting filmography.
Actor
Mary McCormack
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
2.6
Moderate attention
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 40Series: 32
TMDB ID: 1980
IMDb ID: nm0005203
Known for: Acting
Born: February 8, 1969
Age: 57
Place of birth: Plainfield, New Jersey, USA
Gender: Female
Adult content flag: No
Career span: 1990 - 2025
Years active: 36
Average TMDB rating: 6.3
Wikidata: Q242650
Also known as
Mary Catherine McCormack • مری مککورمک
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).
Photos
Movies
Movies
Movie credits linked with Mary McCormack.
6.0
Vicious
as Mother
2025 Movie
2.0
National Memorial Day Concert
as Self
2023 Movie
6.9
Unpregnant
as Debra Clarke
2020 Movie
5.3
Still Laugh-In: The Stars Celebrate
as Self
2019 Movie
5.5
Treehouse
as Lilith
2019 Movie
5.3
Drone
as Ellen
2017 Movie
5.4
Alien Code
as Rebecca
2017 Movie
4.5
The Crash
as Sarah Schwab
2017 Movie
7.8
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
as Kay Larkin
2016 Movie
5.3
A Country Called Home
as Amanda
2016 Movie
7.3
Scooby-Doo! WrestleMania Mystery
as Ms. Richards (voice)
2014 Movie
6.8
Escape from Polygamy
as Leann
2013 Movie
4.3
Should've Been Romeo
as Ellen
2012 Movie
6.7
1408
as Lilly Enslin
2007 Movie
5.7
For Your Consideration
as Pilgrim Woman
2006 Movie
5.8
Right at Your Door
as Lexi
2006 Movie
5.7
Madison
as Bonnie McCormick
2005 Movie
5.1
Dickie Roberts: Former Child Star
as Grace Finney
2003 Movie
4.6
Full Frontal
as Linda
2002 Movie
3.9
World Traveler
as Margaret
2002 Movie
7.2
K-PAX
as Rachel Powell
2001 Movie
6.1
High Heels and Low Lifes
as Frances
2001 Movie
6.7
BigLove
as Phoebe
2001 Movie
5.2
Gun Shy
as Gloria Nesstra
2000 Movie
Series
Series
Series credits linked with Mary McCormack.
7.4
Heels
as Willie Day • 16 eps
2021 Series
7.6
The L Word: Generation Q
as Anne Finley • 1 eps
2019 Series
6.9
The Kids Are Alright
as Peggy Cleary • 23 eps
2018 Series
5.2
25 Words or Less
as Self • 26 eps
2018 Series
7.3
For the People
as Chloe Daniels • 1 eps
2018 Series
7.5
Will & Grace
as Janet • 2 eps
2017 Series
6.6
Loaded
as Casey • 8 eps
2017 Series
6.4
Divorce
as Kathy DeSantis • 1 eps
2016 Series
6.4
Match Game
as Self - Panelist • 1 eps
2016 Series
5.7
To Tell the Truth
as Self - Panelist • 1 eps
2016 Series
5.1
Chelsea
as Self • 2 eps
2016 Series
5.3
Chelsea Does
as Herself • 1 eps
2016 Series
6.4
Angie Tribeca
as Abigail Liukin • 3 eps
2016 Series
5.3
Welcome to the Family
as Caroline Yoder • 9 eps
2013 Series
8.1
The Newsroom
as Molly Levy • 2 eps
2012 Series
7.2
Scandal
as Lisa Elliot • 1 eps
2012 Series
6.6
House of Lies
as Denna Altshuler • 7 eps
2012 Series
5.0
Watch What Happens Live with Andy Cohen
as Self - Guest • 1 eps
2009 Series
6.1
Late Night with Jimmy Fallon
as Self • 1 eps
2009 Series
7.0
In Plain Sight
as Mary Shannon • 61 eps
2008 Series
6.7
The Late Late Show with Craig Ferguson
as Self • 2 eps
2005 Series
5.8
Traffic
as Carole McKay • 3 eps
2004 Series
4.6
K Street
as Maggie Morris • 10 eps
2003 Series
5.6
The Ellen DeGeneres Show
as Self • 1 eps
2003 Series