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Mark O'Brien
Actor · Director
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1984Born, St. Johns
53Credits
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 for
ArrivalCaptain Marks
Marriage StoryCarter Mitchum
Ready or NotAlex
Bad Times at the El RoyaleLarsen Rogers
HannibalRandall Tier2026The Voices of Our MotherWriterMovie
2021The RighteousWriterMovie
2008Pretty GirlsWriterMovie
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