Mark O'Brien

Acting

75%

AVG SCORE · 2 TITLES

Born May 7, 1984 (age 41) · St. Johns, Newfoundland, Canada

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).