Mary McCormack
Acting
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).
Vicious
Mother
National Memorial Day Concert
Self
Unpregnant
Debra Clarke
Still Laugh-In: The Stars Celebrate
Self
Treehouse
Lilith
Drone
Ellen
Alien Code
Rebecca
The Crash
Sarah Schwab
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
Kay Larkin
A Country Called Home
Amanda
Scooby-Doo! WrestleMania Mystery
Ms. Richards (voice)
Escape from Polygamy
Leann
Should've Been Romeo
Ellen
The Unprofessional
Hilary Pfeiffer-Dunne
1408
Lilly Enslin
For Your Consideration
Pilgrim Woman
Right at Your Door
Lexi
Madison
Bonnie McCormick
Dickie Roberts: Former Child Star
Grace Finney
Full Frontal
Linda
World Traveler
Margaret
K-PAX
Rachel Powell
High Heels and Low Lifes
Frances
BigLove
Phoebe
East of A
Daphne
Gun Shy
Gloria Nesstra
The Broken Hearts Club: A Romantic Comedy
Anne
Other Voices
Anna
The Big Tease
Monique
Mystery, Alaska
Donna Biebe
True Crime
Michelle Ziegler
Harvest
Agent Becka Anslinger
Getting to Know You
Leila Lee
The Alarmist
Sally
54
New Year's Eve Wife (uncredited)
Deep Impact
Andrea Baker
Murder One: Diary of a Serial Killer
Justine Appleton
Fathers' Day
Virginia Farrell (uncredited)
Private Parts
Alison Stern
Colin Fitz
Moira
Backfire!
Sarah
Miracle on 34th Street
Myrna Foy