Mary McCormack
Mary McCormack

Mary McCormack

Born: February 8, 1969 (57 years)
Plainfield, 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).

Movies as Actor (42)
Vicious

Vicious

as Mother

Aug 6, 2025

National Memorial Day Concert

National Memorial Day Concert

as Self

May 28, 2023

Unpregnant

Unpregnant

as Debra Clarke

Sep 10, 2020

Still Laugh-In: The Stars Celebrate

Still Laugh-In: The Stars Celebrate

as Self

May 14, 2019

Treehouse

Treehouse

as Lilith

Mar 1, 2019

Drone

Drone

as Ellen

May 26, 2017

Alien Code

Alien Code

as Rebecca

Apr 23, 2017

The Crash

The Crash

as Sarah Schwab

Jan 13, 2017

An American Girl Story: Maryellen 1955 - Extraordinary Christmas

An American Girl Story: Maryellen 1955 - Extraordinary Christmas

as Kay Larkin

Nov 25, 2016

A Country Called Home

A Country Called Home

as Amanda

Feb 26, 2016

Scooby-Doo! WrestleMania Mystery

Scooby-Doo! WrestleMania Mystery

as Ms. Richards (voice)

Mar 11, 2014

Escape from Polygamy

Escape from Polygamy

as Leann

Aug 24, 2013

Should've Been Romeo

Should've Been Romeo

as Ellen

Apr 28, 2012

The Unprofessional

The Unprofessional

as Hilary Pfeiffer-Dunne

Jan 1, 2012

1408

1408

as Lilly Enslin

Jun 22, 2007

For Your Consideration

For Your Consideration

as Pilgrim Woman

Nov 17, 2006

Right at Your Door

Right at Your Door

as Lexi

Jan 23, 2006

Madison

Madison

as Bonnie McCormick

Apr 22, 2005

Dickie Roberts: Former Child Star

Dickie Roberts: Former Child Star

as Grace Finney

Sep 4, 2003

Full Frontal

Full Frontal

as Linda

Aug 2, 2002

World Traveler

World Traveler

as Margaret

Apr 19, 2002

K-PAX

K-PAX

as Rachel Powell

Oct 26, 2001

High Heels and Low Lifes

High Heels and Low Lifes

as Frances

Jul 16, 2001

BigLove

BigLove

as Phoebe

Jan 19, 2001

East of A

East of A

as Daphne

Mar 3, 2000

Gun Shy

Gun Shy

as Gloria Nesstra

Feb 4, 2000

The Broken Hearts Club: A Romantic Comedy

The Broken Hearts Club: A Romantic Comedy

as Anne

Feb 1, 2000

Other Voices

Other Voices

as Anna

Jan 22, 2000

The Big Tease

The Big Tease

as Monique

Nov 26, 1999

Mystery, Alaska

Mystery, Alaska

as Donna Biebe

Oct 1, 1999

True Crime

True Crime

as Michelle Ziegler

Mar 19, 1999

Harvest

Harvest

as Agent Becka Anslinger

Mar 12, 1999

Getting to Know You

Getting to Know You

as Leila Lee

Jan 22, 1999

The Alarmist

The Alarmist

as Sally

Oct 23, 1998

54

54

as New Year's Eve Wife (uncredited)

Aug 28, 1998

Deep Impact

Deep Impact

as Andrea Baker

May 8, 1998

Murder One: Diary of a Serial Killer

Murder One: Diary of a Serial Killer

as Justine Appleton

May 25, 1997

Fathers' Day

Fathers' Day

as Virginia Farrell (uncredited)

May 9, 1997

Private Parts

Private Parts

as Alison Stern

Mar 7, 1997

Colin Fitz

Colin Fitz

as Moira

Jan 19, 1997

Backfire!

Backfire!

as Sarah

Jan 20, 1995

Miracle on 34th Street

Miracle on 34th Street

as Myrna Foy

Nov 18, 1994