Mary McCormack
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).
Known For
Top 40 Movies
Should've Been Romeo
2012
True Crime
1999
Deep Impact
1998
Murder One: Diary of a Serial Killer
1997
Colin Fitz
1997
World Traveler
2002
A Country Called Home
2016
Scooby-Doo! WrestleMania Mystery
2014
K-PAX
2001
Vicious
2025
The Crash
2017
Miracle on 34th Street
1994
1408
2007
Still Laugh-In: The Stars Celebrate
2019
Escape from Polygamy
2013
54
1998
Gun Shy
2000
Full Frontal
2002
Dickie Roberts: Former Child Star
2003
Private Parts
1997
Alien Code
2017
Harvest
1999
Mystery, Alaska
1999
Treehouse
2019
Right at Your Door
2006
Fathers' Day
1997
Unpregnant
2020
For Your Consideration
2006
High Heels and Low Lifes
2001
Drone
2017
The Broken Hearts Club: A Romantic Comedy
2000
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
2016
Other Voices
2000
Madison
2005
BigLove
2001
The Big Tease
1999
The Alarmist
1998
Backfire!
1995