Biography: From Wikipedia, the free encyclopedia Mary Catherine McCormack (born February 8, 1969) is an American actress. Best known for her work in television, she has had leading roles as Justine Appleton on Murder One, as Kate Harper on The West Wing and as Mary Shannon on In Plain Sight. Her film roles include Private Parts (1997), Deep… See full bio

Born: February 8, 1969 in Plainfield, New Jersey, U.S.