Mark O'Brien
Age: 41 years old
Born: May 7, 1984 in St. Johns, Newfoundland, Canada
Born: May 7, 1984 in 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).
