Mary McCormack
Acting · 57 years old
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).
Known For
The Pitt
Dr. Linda Conley
The West Wing
Kate Harper
The Newsroom
Molly Levy
ER
Debbie
An American Girl Story: Maryellen 1955 - Extraordinary Christmas
Kay Larkin
Murder One
Justine Appleton
The L Word: Generation Q
Anne Finley
Law & Order: Criminal Intent
Mary Shannon
Will & Grace
Janet
Getting to Know You
Leila Lee
Heels
Willie Day
For the People
Chloe Daniels
Law & Order
Rickie the Bartender
Scooby-Doo! WrestleMania Mystery
Ms. Richards (voice)
K-PAX
Rachel Powell
Scandal
Lisa Elliot
In Plain Sight
Mary Shannon
The Kids Are Alright
Peggy Cleary
Unpregnant
Debra Clarke
Escape from Polygamy
Leann