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).
Also Known As
Movie Appearances
K-PAX
as Rachel Powell
2001
1408
as Lilly Enslin
2007
High Heels and Low Lifes
as Frances
2001
The Big Tease
as Monique
1999
The Broken Hearts Club: A Romantic Comedy
as Anne
2000
Deep Impact
as Andrea Baker
1998
Private Parts
as Alison Stern
1997
Dickie Roberts: Former Child Star
as Grace Finney
2003
Gun Shy
as Gloria Nesstra
2000
Full Frontal
as Linda
2002
Mystery, Alaska
as Donna Biebe
1999
Right at Your Door
as Lexi
2006
Other Voices
as Anna
2000
Colin Fitz
as Moira
1997
For Your Consideration
as Pilgrim Woman
2006
East of A
as Daphne
2000
54
as New Year's Eve Wife (uncredited)
1998
Fathers' Day
as Virginia Farrell (uncredited)
1997
Harvest
as Agent Becka Anslinger
1999
The Alarmist
as Sally
1998
TV Appearances
The Ellen DeGeneres Show
as Self
2003
Murder One
as Justine Appleton
1995
ER
as Debbie
1994
In Plain Sight
as Mary Shannon
2008
K Street
as Maggie Morris
2003
House of Lies
as Denna Altshuler
2012
Traffic
as Carole McKay
2004
The Wright Verdicts
as Beth Eckhart
1995
The Late Late Show with Craig Kilborn
as Self - Guest
1999
Welcome to the Family
as Caroline Yoder
2013
The West Wing
as Kate Harper
1999
The Late Late Show with Craig Ferguson
as Self
2005