Mark O'Brien ( actor ) - Wikipedia Mark O'Brien ( actor ) Mark O'Brien O'Brien in 2013 ( 1984 - 05 - 07 ) May 7, 1984 ( age 33 ) St. John 's, Newfoundland Nationality Canadian Occupation Actor, director Years active 2005 -- present Spouse ( s ) Georgina Reilly ( 2013 -- present ) 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. Contents 1 Personal life 2 Filmography 2.1 Director, producer and writer 3 References 4 External links Personal life O'Brien married fellow CBC network star Georgina Reilly on January 6, 2013, after having met on the set of the show in 2011. Filmography Film Year Title Role Notes 2005 Downward Calling John Doe Short 2008 Patiently Wasting Paul Short 2008 The One That Got Away Tommy Palchek TV movie 2008 Epilogue Henry Short 2008 Heartless Disappearance Into Labrador Seas Charlie Short 2009 Quiet at Dawn Watts 2009 Grown Up Movie Star Will 2009 Mum 's the Word Curtis Short 2009 Cut from the Same Cloth Jack Cochrane Short Brad Brad Short Snarbuckled Jacob O'Higgins Short 2012 Beat Down Michael 2012 Better People Short 2013 Sweetieface Short 2015 Dennis Dennis Short 2015 End of Days, Inc. Jason 2016 Arrival Captain Marks 2017 Anon Lester Goodman Post-production 2018 The Front Runner Billy Shore Post-production 2018 How It Ends Jeremiah Post-production Television Year Title Role Notes 2005 Legends and Lore of the North Atlantic 2005 -- 2007 Kids ' CBC Himself 2006 Above and Beyond Drake 2 episodes 2010 -- 2014 Republic of Doyle Des Courtney 78 episodes 2011 Warehouse 13 Jerry Hoffler 1 episode 2012 Diary of a Deadly P.I. Des Courtney 12 episodes 2012 Murdoch Mysteries Jerome Bradley 1 episode 2013 This Hour Has 22 Minutes Des Courtney 1 episode 2014 Hannibal Randall Tier 2 episodes 2014 Saving Hope Marshall Parker 1 episode 2015 -- 2016 Halt and Catch Fire Tom Rendon 14 episodes 2017 The Last Tycoon Max Miner 9 episodes Director, producer and writer Title Year Credited as Notes Ref ( s ) Director Writer Producer Actor Other Downward Calling 2005 Yes Yes Yes Yes Yes Short film Editor Lying Awake 2006 Yes Yes Yes Yes Yes Short film Cinematographer, composer and editor Pretty Girls 2008 Yes No No No Yes Short film Editor and cinematographer Brad No No Yes Yes Yes Short film Editor Kathy 2011 Yes No No No No Short film Better People 2012 Yes Yes No Yes Yes Short film Editor Sweetieface 2013 Yes No No Yes Yes Short film Editor Dennis 2015 No No Yes Yes No Short film References Jump up ^ Wagmeister, Elizabeth ( February 19, 2015 ). `` AMC 's ' Halt and Catch Fire ' Adds Two Cast Members for Season 2 ''. Variety. Retrieved July 27, 2015. Jump up ^ Barsanti, Sam ( February 19, 2015 ). `` Aleksa Palladino and Mark O'Brien join AMC 's Halt And Catch Fire ''. The A.V. Club. Retrieved July 27, 2015. Jump up ^ `` Mark O'Brien cast in AMC 's Halt and Catch Fire ''. CBC.ca. March 1, 2015. Retrieved July 27, 2015. Jump up ^ Emily Pratt ( February 1, 2013 ). `` CBC wedding edition : Mark O'Brien and Georgina Reilly ''. CBC Live. Retrieved February 15, 2013. External links Mark O'Brien on IMDb Mark O'Brien on Twitter This article about a Canadian film and television actor or actress is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Mark_O%27Brien_(actor)&oldid=822294013 '' Categories : 1984 births Living people 21st - century Canadian male actors Canadian male film actors Canadian male television actors Canadian film directors Canadian screenwriters Canadian film producers Canadian film editors People from St. John 's, Newfoundland and Labrador Male actors from Newfoundland and Labrador Film directors from Newfoundland and Labrador Canadian screen actor stubs Hidden categories : Use mdy dates from April 2017 Articles with hCards Twitter username different from Wikidata All stub articles Talk Contents About Wikipedia Deutsch Italiano Nederlands Edit links This page was last edited on 25 January 2018, at 15 : 15. About Wikipedia

Question: who plays tom on halt and catch fire
Answer: Mark O'Brien