
Mary McCormack
Acting
0
Movies
24
TV Shows
24
Credits
About
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
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).

Law & Order

Watch What Happens Live with Andy Cohen

Law & Order: Criminal Intent

ER

The West Wing

The Pitt

The Late Late Show with Craig Ferguson

Scandal

Jimmy Kimmel Live!

The Tonight Show with Jay Leno

The Ellen DeGeneres Show

Tony Awards

Angie Tribeca

25 Words or Less

25 Words or Less

25 Words or Less

The Newsroom

In Plain Sight

Murder One

Late Night with Jimmy Fallon

Chelsea

To Tell the Truth

Will & Grace

Match Game