About Mark O'Brien
May 07, 1984
|Place of Birth||:||St. John's, Canada|
|Also Known As||:||Mark O’Brien|
|Imdb Profile||:||IMDB Profile|
Mark O'Brien (born May 7, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.