Mary McCormack
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).
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
Cast Credits
Vicious
as Mother
Unpregnant
as Debra Clarke
Treehouse
as Lilith
Drone
as Ellen
Alien Code
as Rebecca
The Crash
as Sarah Schwab
A Country Called Home
as Amanda
Scooby-Doo! WrestleMania Mystery
as Ms. Richards (voice)
Escape from Polygamy
as Leann
Should've Been Romeo
as Ellen
The Unprofessional
as Hilary Pfeiffer-Dunne
1408
as Lilly Enslin
For Your Consideration
as Pilgrim Woman
Right at Your Door
as Lexi
Madison
as Bonnie McCormick
Dickie Roberts: Former Child Star
as Grace Finney
Full Frontal
as Linda
World Traveler
as Margaret
K-PAX
as Rachel Powell
High Heels and Low Lifes
as Frances
BigLove
as Phoebe
East of A
as Daphne
Gun Shy
as Gloria Nesstra
Other Voices
as Anna
The Big Tease
as Monique
Mystery, Alaska
as Donna Biebe
True Crime
as Michelle Ziegler
Harvest
as Agent Becka Anslinger