Mark O'BrienActingMay 7, 1984 (42 years old) St. Johns, Newfoundland, CanadaPopularity: 1TwitterIMDbBiographyMark 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).Recent & UpcomingNewThe Voices of Our MotherWilliam • Jun 20267.5GemNurembergColonel John Amen • Nov 20255.7Shadow of GodMason Harper • Mar 20255.6Seven VeilsPaul • Mar 2025Known For8.3GemHannibalRandall Tier7.7GemWarehouse 13Jerry Hoffler7.1Ready or NotAlex7.5GemNurembergColonel John Amen7.9GemHalt and Catch FireTom Rendon7.0Republic of DoyleDes Courtney7.6ArrivalCaptain Marks7.2Perry MasonThomas Milligan6.9KilljoysGrayson Hicks8.1GemYour HonorFather Jay7.3City on a HillJimmy Ryan6.5The Copenhagen TestEdmund CobbPhotos of Mark O'BrienFilmographyMovies44TV Shows12AllCast42Crew12Browse All2020sNewThe Voices of Our MotherWilliam7.5GemNurembergColonel John Amen5.7Shadow of GodMason Harper5.6Seven VeilsPaulThe Memory KeeperElizeus Carrier5.3TopperTopper7.4Blue BayouAce6.2The RighteousAaron Smith2010s7.1Ready or NotAlex7.7Marriage StoryCarter Mitchum6.9GoalieTerry Sawchuk5.4HammerChris Davis4.7State Like SleepDarren6.0AnonCyrus Frear7.0The Darkest MindsRob Meadows6.8Bad Times at the El RoyaleLarsen Rogers5.3How It EndsJeremiah6.1KinJake5.9The Front RunnerBilly Shore6.0ParallelJosh7.6ArrivalCaptain MarksWandererEric4.9The Dark StrangerMark5.1How to Plan an Orgy in a Small TownBruce Buck5.7End of Days, Inc.JasonDennisDennisBeat DownMichaelKathyDirector5.1Grown Up Movie StarWillSnarbuckledJacob O'Higgins2000s3.8The Four HorsemenEric RollinsHeartless Disappearance Into Labrador SeasCharlie4.3The One That Got AwayTommy Palchek
