Mary McCormack (gebore 8 Februarie 1969) is 'n Amerikaanse aktrise, vervaardiger, en skryfster. Sy is bekend vir haar rolle in die rolprente Deep Impact (1998), K-PAX (2001), en 1408 (2007), en in die televisiereeks In Plain Sight (2008). 1997: The Alarmist 1997: Private Parts 1998: Deep Impact 1999: Mystery, Alaska 2000: Other Voices 2001: K-PAX 2001: Madison 2001: High Heels and Low Lifes 2003: Dickie Roberts: Former Child Star 2006: Right at Your Door 2007: 1408 2015: A Country Called Home 2017: Drone 1995: Murder One 2003: K Street 2005: Celebrity Charades 2008: In Plain Sight 2013: Welcome to the Family 2016: Chelsea Does 2016: Chelsea 2017: Loaded 2018: The Kids Are Alright Unspeakable 2001: More, Patience 2002: Julie Lydecker 2012: The Unprofessional 2013: Escape from Polygamy 2016: An American Girl Story: Maryellen 1955 - Extraordinary Christmas You Take My Point 2002: Spotlight on Location: The Making of 'K-PAX' 2012: Walk and Talk the Vote: West Wing Reunion - Bridget Mary McCormack 2014: Scooby-Doo!