Mary McCormack
Acting
🎂 1969-02-08
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).
Cast credits(74)
Rickie the Bartender
1990
Mary Shannon
2001
Self - Guest
2009
Kate Harper
1999
Lisa Elliot
2012
Debbie
1994
Self - Nominee
1956
Self
2005
Self
2003
1992
Mary Shannon
2008
Self
2009
Abigail Liukin
2016
Molly Levy
2012
Denna Altshuler
2012
Janet
2017
Self
2016
Andrea Baker
1998
Self - Panelist
2016
Self - Panelist
2016
Anne Finley
2019
Self
2018
Kathy DeSantis
2016
Rachel Powell
2001
Self - Guest
1999
Justine Appleton
1995
Lilly Enslin
2007
Chloe Daniels
2018
Myrna Foy
1994
New Year's Eve Wife (uncredited)
1998
Virginia Farrell (uncredited)
1997
Willie Day
2021
Michelle Ziegler
1999
Debra Clarke
2020
Pilgrim Woman
2006
Moira
1997
Donna Biebe
1999
Lilith
2019
Ellen
2017
Linda
2002
Peggy Cleary
2018
Daphne
2000
Grace Finney
2003
Anne
2000
Ms. Richards (voice)
2014
Alison Stern
1997
Maggie Morris
2003
Frances
2001
Self
2019
Sally
1998
2025
Kay Larkin
2016
Hilary Pfeiffer-Dunne
2012
Bonnie McCormick
2005
Leila Lee
1999
Sarah Schwab
2017
Leann
2013
Anna
2000
Casey
2017
Agent Becka Anslinger
1999
Lexi
2006
Carole McKay
2004
Monique
1999
Herself
2016
Ellen
2012
Rebecca
2017
Caroline Yoder
2013
Beth Eckhart
1995
Gloria Nesstra
2000
Margaret
2002
Phoebe
2001
Amanda
2016
Sarah Jackson
1995
Self
2023