Name: Mark O'Brien
Birthday: 07 May 1984
Deathday: null
Place of Birth: St. Johns, Newfoundland, Canada
Known For: Acting
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).
