Actor · DirectorMark O'BrienMay 7, 1984(39 years old) St. Johns, Newfoundland, CanadaMark 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).SocialsTwitterIMDbKnown forArrivalCaptain MarksMarriage StoryCarter MitchumHannibalRandall TierBad Times at the El RoyaleLarsen RogersAnonCyrus FrearThe Front RunnerBilly ShoreHalt and Catch FireTom RendonThe Darkest MindsRob MeadowsPerry MasonThomas MilliganYour HonorFather JayWarehouse 13Jerry HofflerHow It EndsJeremiah
