Personal details
Known for
Acting
Gender
Female
Born
8 Februar 1969 (57)
Place of birth
Plainfield, New Jersey, USA
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).
Bekannt für
8.3
Series
The West Wing
Kate Harper
1999–2006
7.1
Series
In Plain Sight
Mary Shannon
2008–2012
7.7
Series
Murder One
Justine Appleton
1995–1997
6.2
Film
Deep Impact
Andrea Baker
1998
6.7
Film
1408
Lilly Enslin
2007
6.8
Film
Miracle on 34th Street
Myrna Foy
1994
7.2
Film
K-PAX
Rachel Powell
2001
7.4
Series
Heels
Willie Day
2021–2023
5.1
Film
Dickie Roberts: Former Child Star
Grace Finney
2003
5.9
Film
Vicious
Mother
2025
4.6
Film
Full Frontal
Linda
2002
6.5
Series
Traffic
Carole McKay
2004
4.9
Series
K Street
Maggie Morris
2003
5.2
Film
Gun Shy
Gloria Nesstra
2000
6.5
Film
Private Parts
Alison Stern
1997
6.5
Film
True Crime
Michelle Ziegler
1999
5.3
Series
Welcome to the Family
Caroline Yoder
2013
6.4
Series
Loaded
Casey
2017
6.9
Series
The Kids Are Alright
Peggy Cleary
2018–2019
10.0
Series
The Wright Verdicts
Beth Eckhart
1995
6.8
Film
Unpregnant
Debra Clarke
2020
5.5
Film
Treehouse
Lilith
2019
4.5
Film
The Crash
Sarah Schwab
2017
2.0
Film
National Memorial Day Concert
Self
2023
5.3
Film
Drone
Ellen
2017
5.4
Film
Alien Code
Rebecca
2017
7.8
Film
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
Kay Larkin
2016
5.3
Film
A Country Called Home
Amanda
2016
Acting credits 28 titles
Vicious
as Mother
5.9
2025
National Memorial Day Concert
as Self
2.0
2023
Heels
as Willie Day
7.4
2021–2023
Unpregnant
as Debra Clarke
6.8
2020
Treehouse
as Lilith
5.5
2019
The Kids Are Alright
as Peggy Cleary
6.9
2018–2019
Drone
as Ellen
5.3
2017
Alien Code
as Rebecca
5.4
2017
The Crash
as Sarah Schwab
4.5
2017
Loaded
as Casey
6.4
2017
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
as Kay Larkin
7.8
2016
A Country Called Home
as Amanda
5.3
2016
Welcome to the Family
as Caroline Yoder
5.3
2013
In Plain Sight
as Mary Shannon
7.1
2008–2012
1408
as Lilly Enslin
6.7
2007
Traffic
as Carole McKay
6.5
2004
K Street
as Maggie Morris
4.9
2003
Dickie Roberts: Former Child Star
as Grace Finney
5.1
2003
Full Frontal
as Linda
4.6
2002
K-PAX
as Rachel Powell
7.2
2001
Gun Shy
as Gloria Nesstra
5.2
2000
True Crime
as Michelle Ziegler
6.5
1999
The West Wing
as Kate Harper
8.3
1999–2006
Deep Impact
as Andrea Baker
6.2
1998
Private Parts
as Alison Stern
6.5
1997
Murder One
as Justine Appleton
7.7
1995–1997
The Wright Verdicts
as Beth Eckhart
10.0
1995
Miracle on 34th Street
as Myrna Foy
6.8
1994