Mark O'Brien (actor)
Mark O'Brien is a Canadian actor and director best known for his the roles as Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire. He won the Canadian Screen Award for Best Actor at the 8th Canadian Screen Awards for his performance as Terry Sawchuk in the biographical drama film Goalie.
Personal life
O'Brien married fellow CBC network star Georgina Reilly on January 6, 2013, after having met on the set of Republic of Doyle in 2011.Filmography
Film
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 |
| 2008 | The One That Got Away | Tommy Palchek | TV movie |
| 2010–2014 | Republic of Doyle | Des Courtney | 78 episodes |
| 2011 | Warehouse 13 | Jerry Hoffler | |
| 2012 | Diary of a Deadly P.I. | Des Courtney | 12 episodes |
| 2012 | Murdoch Mysteries | Jerome Bradley | |
| 2013 | This Hour Has 22 Minutes | Des Courtney | |
| 2014 | Hannibal | Randall Tier | 2 episodes |
| 2014 | Saving Hope | Marshall Parker | |
| 2015–2016 | Halt and Catch Fire | Tom Rendon | 14 episodes |
| 2017 | The Last Tycoon | Max Miner | 9 episodes |
| 2019 | City on a Hill | Jimmy Ryan |