Mark O'Brien
ActingBorn May 7, 1984 (age 42)
St. Johns, Newfoundland, Canada
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 · Daniel Ashford
The Voices of Our Mother2026 · William
The Copenhagen Test2025 · Edmund Cobb
Nuremberg2025 · Colonel John Amen
The Memory Keeper2025 · Elizeus Carrier
Shadow of God2025 · Mason Harper
Seven Veils2025 · Paul
Topper2025 · Topper
The Sticky2024 · Charlie
61st Street2022 · Officer Logan
Blue Bayou2021 · Ace
The Righteous2021 · Aaron Smith
Your Honor2020 · Father Jay
Perry Mason2020 · Thomas Milligan
Hammer2019 · Chris Davis
Marriage Story2019 · Carter Mitchum
The Kelly Clarkson Show2019 · Self
Ready or Not2019 · Alex
City on a Hill2019 · Jimmy Ryan
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
Parallel2018 · Josh
The Last Tycoon2017 · Max Miner
Arrival2016 · Captain Marks
Wanderer2016 · Eric
The Dark Stranger2016 · Mark
How to Plan an Orgy in a Small Town2015 · Bruce Buck
Killjoys2015 · Grayson Hicks
End of Days, Inc.2015 · Jason
Dennis2015 · Dennis
Halt and Catch Fire2014 · Tom Rendon
Hannibal2013 · Randall Tier
Sweetieface
Sweetieface2013 · Sam
Beat Down2012 · Michael