Mark O'Brien
Known For
Acting
Gender
Male
Birthday
May 7, 1984 (42 years old)
Place of Birth
St. Johns, Newfoundland, Canada
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).
Known For
| 2025 | Seven VeilsPaul | |
| 2025 | Shadow of GodMason Harper | |
| 2025 | NurembergColonel John Amen | |
| 2025 | FalsehoodElizeus Carrier | |
| 2025 | TopperTopper | |
| 2025 | The Copenhagen TestEdmund Cobb | |
| 2024 | The StickyCharlie | |
| 2022 | 61st StreetOfficer Logan | |
| 2021 | Blue BayouAce | |
| 2021 | The RighteousAaron Smith | |
| 2020 | Perry MasonThomas Milligan | |
| 2020 | Your HonorFather Jay | |
| 2019 | State Like SleepDarren | |
| 2019 | Marriage StoryCarter Mitchum | |
| 2019 | GoalieTerry Sawchuk | |
| 2019 | HammerChris Davis | |
| 2019 | Ready or NotAlex Le Domas | |
| 2019 | The Kelly Clarkson ShowSelf | |
| 2019 | City on a HillJimmy Ryan | |
| 2018 | AnonCyrus Frear | |
| 2018 | KinJake | |
| 2018 | ParallelJosh | |
| 2018 | The Darkest MindsRob Meadows | |
| 2018 | Bad Times at the El RoyaleLarsen Rogers | |
| 2018 | The Front RunnerBilly Shore | |
| 2018 | How It EndsJeremiah | |
| 2017 | The Last TycoonMax Miner | |
| 2016 | The Dark StrangerMark | |
| 2016 | ArrivalCaptain Marks | |
| 2016 | WandererEric | |
| 2015 | End of Days, Inc.Jason | |
| 2015 | How to Plan an Orgy in a Small TownBruce Buck | |
| 2015 | DennisDennis | |
| 2015 | KilljoysGrayson Hicks | |
| 2014 | Halt and Catch FireTom Rendon | |
| 2013 | SweetiefaceSam | |
| 2013 | HannibalRandall Tier | |
| 2012 | Beat DownMichael | |
| 2010 | Grown Up Movie StarWill | |
| 2010 | SnarbuckledJacob O'Higgins | |
| 2010 | BradBrad | |
| 2010 | Republic of DoyleDes Courtney | |
| 2009 | Cut from the Same ClothJack Cochrane | |
| 2009 | Mum's the WordCurtis | |
| 2009 | Quiet at DawnWatts | |
| 2009 | Warehouse 13Jerry Hoffler | |
| 2008 | The Four HorsemenEric Rollins | |
| 2008 | Heartless Disappearance Into Labrador SeasCharlie | |
| 2008 | EpilogueHenry | |
| 2008 | The One That Got AwayTommy Palchek | |
| - | The Voices of Our MotherWilliam | |
| - | The Outer Threat | |
| - | Better PeopleJohn | |
| - | Nice People |
| 2021 | The RighteousExecutive Producer | |
| 2019 | GoalieExecutive Producer | |
| 2016 | WandererProducer | |
| 2015 | DennisProducer | |
| 2013 | SweetiefaceProducer | |
| 2010 | BradProducer |
| 2021 | The RighteousDirector | |
| 2016 | WandererDirector | |
| 2013 | SweetiefaceDirector | |
| 2011 | KathyDirector | |
| 2008 | Pretty GirlsDirector | |
| - | The Voices of Our MotherDirector | |
| - | Better PeopleDirector | |
| - | Nice PeopleDirector |
| 2021 | The RighteousWriter | |
| 2008 | Pretty GirlsWriter | |
| - | The Voices of Our MotherWriter | |
| - | Better PeopleWriter |
| 2008 | Pretty GirlsCinematography |