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Portrait of Mark O'Brien

Acting

Mark O'Brien

  • Born May 7, 1984
  • St. Johns, Newfoundland, Canada
  • 42 years old

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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Captain Marks

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Carter Mitchum

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Alex

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Larsen Rogers

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Randall Tier

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Rob Meadows

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Jeremiah

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Cyrus Frear

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Father Jay

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Colonel John Amen

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Jake

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Jerry Hoffler

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Tom Rendon

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Grayson Hicks

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Thomas Milligan

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Billy Shore

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Ace

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Jimmy Ryan

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Josh

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Bruce Buck

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Edmund Cobb

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Charlie

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Max Miner

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Paul

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Mason Harper

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Darren

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Des Courtney

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Mark

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Eric Rollins

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Chris Davis

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Officer Logan

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Jason

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Aaron Smith

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Daniel Ashford

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Will

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Terry Sawchuk

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William

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Tommy Palchek

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Topper

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Elizeus Carrier

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Eric

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Michael

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John

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Brad

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Dennis

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Henry

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Charlie

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Charlie

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Jacob O'Higgins

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Paul

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Deputy Ted Keegan

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Executive production

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Executive production

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Executive production

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Cinematography