Mary McCormack
- Known for
- Acting
- Born
- 8 February 1969 · Plainfield, New Jersey, USA
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
Acting 42
- 2025Vicious as Mother
- 2023National Memorial Day Concert as Self
- 2020Unpregnant as Debra Clarke
- 2019Still Laugh-In: The Stars Celebrate as Self
- 2019Treehouse as Lilith
- 2017Drone as Ellen
- 2017Alien Code as Rebecca
- 2017The Crash as Sarah Schwab
- 2016An American Girl Story: Maryellen 1955 - Extraordinary Christmas as Kay Larkin
- 2016A Country Called Home as Amanda
- 2014Scooby-Doo! WrestleMania Mystery as Ms. Richards (voice)
- 2013Escape from Polygamy as Leann
- 2012Should've Been Romeo as Ellen
- 2012The Unprofessional as Hilary Pfeiffer-Dunne
- 20071408 as Lilly Enslin
- 2006For Your Consideration as Pilgrim Woman
- 2006Right at Your Door as Lexi
- 2005Madison as Bonnie McCormick
- 2003Dickie Roberts: Former Child Star as Grace Finney
- 2002Full Frontal as Linda
- 2002World Traveler as Margaret
- 2001K-PAX as Rachel Powell
- 2001High Heels and Low Lifes as Frances
- 2001BigLove as Phoebe
- 2000East of A as Daphne
- 2000Gun Shy as Gloria Nesstra
- 2000The Broken Hearts Club: A Romantic Comedy as Anne
- 2000Other Voices as Anna
- 1999The Big Tease as Monique
- 1999Mystery, Alaska as Donna Biebe
- 1999True Crime as Michelle Ziegler
- 1999Harvest as Agent Becka Anslinger
- 1999Getting to Know You as Leila Lee
- 1998The Alarmist as Sally
- 199854 as New Year's Eve Wife (uncredited)
- 1998Deep Impact as Andrea Baker
- 1997Murder One: Diary of a Serial Killer as Justine Appleton
- 1997Fathers' Day as Virginia Farrell (uncredited)
- 1997Private Parts as Alison Stern
- 1997Colin Fitz as Moira
- 1995Backfire! as Sarah
- 1994Miracle on 34th Street as Myrna Foy