Mark O’Brien

Mark O’Brien is a Canadian actor and director. He is best known for playing the roles of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.

Guest Appearances

May 21, 2018

Mark O’Brien recalls a successful career on Canadian TV, the dream of making it in America, and being cast in “Halt and Catch Fire” ten days after landing in LA.