Mark O'Brien
Mark O'Brien is known for acting, with films including Ready or Not, Arrival, Nuremberg. Browse the full filmography and find where to stream on sseenn.
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).