Back to people
Known for Acting Age 42 years Place of birth St. Johns, Newfoundland, Canada
Mark O'Brien
Biography
Life and career
Filmography
13 films
Nuremberg
2025as Colonel John Amen
Blue Bayou
2021as Ace
Marriage Story
2019as Carter Mitchum
Ready or Not
2019as Alex Le Domas
The Front Runner
2018as Billy Shore
Bad Times at the El Royale
2018as Larsen Rogers
Kin
2018as Jake
The Darkest Minds
2018as Rob Meadows
How It Ends
2018as Jeremiah
Anon
2018as Cyrus Frear
Parallel
2018as Josh
Arrival
2016as Captain Marks
