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Mark O'Brien profile
Acting

Mark O'Brien

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).

43Cast credits12Crew credits12ActuallyLike pages
Profile

Biography

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).

Movies

Known for

Ready or Not posterReady or Not2019 · Alex3.5ActuallyLikeArrival posterArrival2016 · Captain Marks3.8ActuallyLikeNuremberg posterNuremberg2025 · Colonel John Amen3.8ActuallyLikeMarriage Story posterMarriage Story2019 · Carter Mitchum3.9ActuallyLikeBad Times at the El Royale posterBad Times at the El Royale2018 · Larsen Rogers3.4ActuallyLikeThe Darkest Minds posterThe Darkest Minds2018 · Rob Meadows3.5ActuallyLikeHow It Ends posterHow It Ends2018 · Jeremiah2.6ActuallyLikeAnon posterAnon2018 · Cyrus Frear3.0ActuallyLike
Catalog

ActuallyLike pages

Anon posterAnon2018 · Cyrus Frear3.0ActuallyLikeArrival posterArrival2016 · Captain Marks3.8ActuallyLikeBad Times at the El Royale posterBad Times at the El Royale2018 · Larsen Rogers3.4ActuallyLikeBlue Bayou posterBlue Bayou2021 · Ace3.7ActuallyLikeHow It Ends posterHow It Ends2018 · Jeremiah2.6ActuallyLikeKin posterKin2018 · Jake3.0ActuallyLikeMarriage Story posterMarriage Story2019 · Carter Mitchum3.9ActuallyLikeNuremberg posterNuremberg2025 · Colonel John Amen3.8ActuallyLikeParallel posterParallel2018 · Josh3.0ActuallyLikeReady or Not posterReady or Not2019 · Alex3.5ActuallyLikeThe Darkest Minds posterThe Darkest Minds2018 · Rob Meadows3.5ActuallyLikeThe Front Runner posterThe Front Runner2018 · Billy Shore3.0ActuallyLike
Cast

Cast credits

Ready or Not posterReady or Not2019 · Alex3.5ActuallyLikeArrival posterArrival2016 · Captain Marks3.8ActuallyLikeNuremberg posterNuremberg2025 · Colonel John Amen3.8ActuallyLikeMarriage Story posterMarriage Story2019 · Carter Mitchum3.9ActuallyLikeBad Times at the El Royale posterBad Times at the El Royale2018 · Larsen Rogers3.4ActuallyLikeThe Darkest Minds posterThe Darkest Minds2018 · Rob Meadows3.5ActuallyLikeHow It Ends posterHow It Ends2018 · Jeremiah2.6ActuallyLikeAnon posterAnon2018 · Cyrus Frear3.0ActuallyLikeKin posterKin2018 · Jake3.0ActuallyLikeBlue Bayou posterBlue Bayou2021 · Ace3.7ActuallyLikeThe Front Runner posterThe Front Runner2018 · Billy Shore3.0ActuallyLikeParallel posterParallel2018 · Josh3.0ActuallyLikeHow to Plan an Orgy in a Small Town posterHow to Plan an Orgy in a Small Town2015 · Bruce Buck2.6Seven Veils posterSeven Veils2025 · Paul2.9Shadow of God posterShadow of God2025 · Mason Harper2.8The Outer Threat posterThe Outer Threat2026 · Daniel Ashford2.9The Righteous posterThe Righteous2021 · Aaron Smith3.2The Four Horsemen posterThe Four Horsemen2008 · Eric Rollins2.9
Crew

Crew credits

The Righteous posterThe Righteous2021 · Writer, Director, Executive Producer3.2Goalie posterGoalie2019 · Executive Producer3.4The Voices of Our Mother posterThe Voices of Our Mother2026 · Director, Writer3.2Kathy posterKathy2011 · DirectorDennis posterDennis2015 · ProducerWanderer posterWanderer2016 · Director, ProducerBBetter PeopleMovie · Director, Writer, EditorBBrad2010 · Producer, EditorGGood in the RoomMovie · Writer, Executive ProducerPPretty Girls2008 · Director, Writer, Editor, CinematographyNNice PeopleMovie · DirectorSSweetieface2013 · Director, Producer, Editor