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 McCormack
Actress · Born 8 Feb 1969, Plainfield
Mary Catherine McCormack is an American actress. She has had leading roles as Justine Appleton on the series Murder One…
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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).
Facts
- Born8 February 1969 (age 57)Magh 26, 2025 BS
- BirthplacePlainfield, New Jersey, USA
- Known forActing
- GenderFemale
- Also known asMary Catherine McCormack, مری مککورمک
- Popularity1.1TMDB score
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Movies 42
Vicious
National Memorial Day Concert
Unpregnant
Still Laugh-In: The Stars Celebrate
Treehouse
Drone
Alien Code
The Crash
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
A Country Called Home
Scooby-Doo! WrestleMania Mystery
Escape from Polygamy
Should've Been Romeo
The Unprofessional
1408
For Your Consideration
Right at Your Door
Madison
Dickie Roberts: Former Child Star
Full Frontal
TV 36
Photos 4
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Known for
1408 (2007)·Deep Impact (1998)·K-PAX (2001)·Miracle on 34th Street (1994)·The Pitt (2025)·ER (1994)