Mark O'Brien
05/07/1984 , (39 years old) in St. Johns, Newfoundland, Canada
Known for department
Acting
Biography
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).
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