Mark O'Brien

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).

• Known ForActing
• Born7 May 1984 (age 41)
• Place of Birth St. Johns, Newfoundland, Canada