Image of Mark O'Brien

Mark O'Brien

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.

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May 7, 1984 In Canada
Movie/TV Credits:
First Appeared:
In the movie The Four Horsemen 2008-03-18
Latest Project:
Movie Blue Bayou 2021-09-10
Known For
Poster of Parallel
Poster of Beat Down
Poster of Grown Up Movie Star
Poster of The Four Horsemen
Movie Blue Bayou Ace 2021-09-10
Movie Parallel Josh 2020-12-11
Movie Goalie Terry Sawchuk 2019-03-01
Series City on a Hill Jimmy Ryan 2019-06-16
Movie State Like Sleep Darren 2019-01-04
Movie Ready or Not Alex 2019-08-21
Movie Hammer Chris Davis 2019-12-05
Movie Marriage Story Carter Mitchum 2019-09-28
Movie The Darkest Minds Rob Meadows 2018-07-25
Movie Anon Cyrus Frear 2018-05-03
Movie How It Ends Jeremiah 2018-07-13
Movie The Front Runner Billy Shore 2018-11-06
Movie Bad Times at the El Royale Larsen Rogers 2018-10-04
Movie Kin Jake 2018-08-29
Series The Last Tycoon Max Miner 2017-07-28
Movie Arrival Captain Marks 2016-11-10
Movie The Dark Stranger Mark 2016-07-15
Movie End of Days, Inc. Jason 2015-04-24
Series Killjoys Grayson Hicks 2015-06-19
Movie How to Plan an Orgy in a Small Town Bruce Buck 2015-09-19
Series Halt and Catch Fire Tom Rendon 2014-06-01
Movie Beat Down Father Tyrone 2012-08-03
Series Republic of Doyle Des Courtney 2010-01-06
Movie Grown Up Movie Star Will 2009-10-20
Series Warehouse 13 Jerry Hoffler 2009-07-07
Movie The Four Horsemen Eric Rollins 2008-03-18