Mark O'Brien

Known for Acting

Acting credits

2026 The Outer Threat as Daniel Ashford
2025 Nuremberg as Colonel John Amen
2025 Shadow of God as Mason Harper
2021 Blue Bayou as Ace
2019 Marriage Story as Carter Mitchum
2019 Ready or Not as Alex
2018 The Front Runner as Billy Shore
2018 Bad Times at the El Royale as Larsen Rogers
2018 Kin as Jake
2018 The Darkest Minds as Rob Meadows
2018 How It Ends as Jeremiah
2018 Anon as Cyrus Frear
2018 Parallel as Josh
2016 Arrival as Captain Marks