About
Mark O'Brien (born May 7th, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle (2010) and Tom Rendon in Halt and Catch Fire (2014).
Filmography
The Outer Threat2026
The Voices of Our Mother2026 · William
Nuremberg2025 · Colonel John Amen
The Memory Keeper2025 · Elizeus Carrier
Shadow of God2025 · Mason Harper
Seven Veils2025 · Paul
Topper2025 · Topper
Blue Bayou2021 · Ace
The Righteous2021 · Aaron Smith
Hammer2019 · Chris Davis
Marriage Story2019 · Carter Mitchum
Ready or Not2019 · Alex
Goalie2019 · Terry Sawchuk
State Like Sleep2019 · Darren
The Front Runner2018 · Billy Shore
Bad Times at the El Royale2018 · Larsen Rogers
Kin2018 · Jake
The Darkest Minds2018 · Rob Meadows
How It Ends2018 · Jeremiah
Anon2018 · Cyrus Frear