Mary McCormack
Known for ActingBorn 1969-02-08Plainfield, 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
1408
2007 · as Lilly Enslin
Deep Impact
1998 · as Andrea Baker
Vicious
2025 · as Mother
K-PAX
2001 · as Rachel Powell
Gun Shy
2000 · as Gloria Nesstra
Full Frontal
2002 · as Linda
Private Parts
1997 · as Alison Stern
True Crime
1999 · as Michelle Ziegler
Miracle on 34th Street
1994 · as Myrna Foy
54
1998 · as New Year's Eve Wife (uncredited)
Treehouse
2019 · as Lilith
Mystery, Alaska
1999 · as Donna Biebe
Fathers' Day
1997 · as Virginia Farrell (uncredited)
For Your Consideration
2006 · as Pilgrim Woman
Drone
2017 · as Ellen
Scooby-Doo! WrestleMania Mystery
2014 · as Ms. Richards (voice)
Unpregnant
2020 · as Debra Clarke
The Broken Hearts Club: A Romantic Comedy
2000 · as Anne