Acting
February 8, 1969 (age 57)
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).
as Andrea Baker
as Lilly Enslin
as Mother
as Rachel Powell
as Myrna Foy
as New Year's Eve Wife (uncredited)
as Michelle Ziegler
as Alison Stern
as Ms. Richards (voice)
as Debra Clarke
as Rickie the Bartender
as Dr. Linda Conley
as Self - Guest
as Debbie
as Mary Shannon
as Kate Harper
as Lisa Elliot
as Self
as Molly Levy
as Self - Nominee