Mary McCormack
Born: 1969-02-08 in Plainfield, New Jersey, USA
Known For: Acting
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).
Filmography
2025
- Vicious as Mother
2023
- National Memorial Day Concert as Self
2021
- Heels as Willie Day
2020
- Unpregnant as Debra Clarke
2019
- The L Word: Generation Q as Anne Finley
- Still Laugh-In: The Stars Celebrate as Self
- Treehouse as Lilith
2018
- 25 Words or Less as Self
- For The People as Chloe Daniels
- The Kids Are Alright as Peggy Cleary
2017
- Alien Code as Rebecca
- Will & Grace as Janet
- The Crash as Sarah Schwab
- Drone as Ellen
- Loaded as Casey
2016
- Chelsea as Self
- Match Game as Self - Panelist
- Angie Tribeca as Abigail Liukin
- Divorce as Kathy DeSantis
- To Tell the Truth as Self - Panelist
- A Country Called Home as Amanda
- An American Girl Story: Maryellen 1955 - Extraordinary Christmas as Kay Larkin
- Chelsea Does as Herself
2014
- Scooby-Doo! WrestleMania Mystery as Ms. Richards (voice)
2013
- Escape from Polygamy as Leann
- Welcome to the Family as Caroline Yoder
2012
- Scandal as Lisa Elliot
- The Newsroom as Molly Levy
- Should've Been Romeo as Ellen
- House of Lies as Denna Altshuler
- The Unprofessional as Hilary Pfeiffer-Dunne
2009
- Watch What Happens Live with Andy Cohen as Self - Guest
- Late Night with Jimmy Fallon as Self
2008
- In Plain Sight as Mary Shannon
2007
- 1408 as Lilly Enslin
2006
- Right at Your Door as Lexi
- For Your Consideration as Pilgrim Woman
2005
- The Late Late Show with Craig Ferguson as Self
- Madison as Bonnie McCormick
2004
- Traffic as Carole McKay
2003
- The Ellen DeGeneres Show as Self
- Dickie Roberts: Former Child Star as Grace Finney
- K Street as Maggie Morris
2002
- Full Frontal as Linda
- World Traveler as Margaret
2001
- Law & Order: Criminal Intent as Mary Shannon
- K-PAX as Rachel Powell
- BigLove as Phoebe
- High Heels and Low Lifes as Frances
2000
- The Broken Hearts Club: A Romantic Comedy as Anne
- Other Voices as Anna
- Gun Shy as Gloria Nesstra
- East of A as Daphne
1999
- The West Wing as Kate Harper
- The Late Late Show with Craig Kilborn as Self - Guest
- True Crime as Michelle Ziegler
- Getting to Know You as Leila Lee
- Mystery, Alaska as Donna Biebe
- Harvest as Agent Becka Anslinger
- The Big Tease as Monique
1998
- Deep Impact as Andrea Baker
- 54 as New Year's Eve Wife (uncredited)
- The Alarmist as Sally
1997
- Murder One: Diary of a Serial Killer as Justine Appleton
- Private Parts as Alison Stern
- Fathers' Day as Virginia Farrell (uncredited)
- Colin Fitz as Moira
1995
- Murder One as Justine Appleton
- Backfire! as Sarah Jackson
- The Wright Verdicts as Beth Eckhart
1994
- ER as Debbie
- Miracle on 34th Street as Myrna Foy
1990
- Law & Order as Rickie the Bartender
1956
- Tony Awards as Self - Nominee