Mary McCormack
Acting
Born February 8, 1969 · Plainfield, New Jersey, USA
Biography
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 · 40 titles
Watch What Happens Live with Andy Cohen
Law & Order
The Late Late Show with Craig Ferguson
Law & Order: Criminal Intent
ER
The Pitt
The West Wing
Jimmy Kimmel Live!
Tony Awards
The Tonight Show with Jay Leno
Scandal
25 Words or Less
The Ellen DeGeneres Show
Late Night with Jimmy Fallon
House of Lies
In Plain Sight
Chelsea
The Newsroom
Angie Tribeca
Murder One
The Late Late Show with Craig Kilborn
Match Game
Will & Grace
To Tell the Truth
For the People
Divorce
The L Word: Generation Q
Deep Impact
K-PAX
1408
Heels
Vicious
Miracle on 34th Street
K Street
Traffic
54
The Kids Are Alright
True Crime
Gun Shy
Welcome to the Family