Mary McCormack

Professional Registry

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Bio Sheet

Gender Female

Origin 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).

Serial Registry

1 Units

SERIES

✭ 8.9

The Pitt

Season 3

2025