Personal Info
Known For:
Acting
Birthday:
May 7, 1984
Place of Birth:
St. Johns, Newfoundland, Canada
Social Media
Mark O'Brien
Biography
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
Filmography
| Year | Movie | Role |
|---|---|---|
| 2025 | Seven Veils | Paul |
| 2025 | Shadow of God | Mason Harper |
| 2025 | Nuremberg | Colonel John Amen |
| 2025 | Falsehood | Elizeus Carrier |
| 2025 | Topper | Topper |
| 2021 | Blue Bayou | Ace |
| 2021 | The Righteous | Aaron Smith |
| 2019 | State Like Sleep | Darren |
| 2019 | Marriage Story | Carter Mitchum |
| 2019 | Goalie | Terry Sawchuk |
| 2019 | Hammer | Chris Davis |
| 2019 | Ready or Not | Alex Le Domas |
| 2018 | Anon | Cyrus Frear |
| 2018 | Kin | Jake |
| 2018 | Parallel | Josh |
| 2018 | The Darkest Minds | Rob Meadows |
| 2018 | Bad Times at the El Royale | Larsen Rogers |
| 2018 | The Front Runner | Billy Shore |
| 2018 | How It Ends | Jeremiah |
| 2016 | The Dark Stranger | Mark |
| 2016 | Arrival | Captain Marks |
| 2016 | Wanderer | Eric |
| 2015 | End of Days, Inc. | Jason |
| 2015 | How to Plan an Orgy in a Small Town | Bruce Buck |
| 2015 | Dennis | Dennis |
| 2013 | Sweetieface | Sam |
| 2012 | Beat Down | Michael |
| 2010 | Snarbuckled | Jacob O'Higgins |
| 2010 | Brad | Brad |
| 2009 | Grown Up Movie Star | Will |
| 2009 | Cut from the Same Cloth | Jack Cochrane |
| 2009 | Mum's the Word | Curtis |
| 2009 | Quiet at Dawn | Watts |
| 2008 | The Four Horsemen | Eric Rollins |
| 2008 | Heartless Disappearance Into Labrador Seas | Charlie |
| 2008 | Epilogue | Henry |
| 2008 | The One That Got Away | Tommy Palchek |
| The Voices of Our Mother | William | |
| The Outer Threat | ||
| Better People | John | |
| Nice People |
| Year | TV Show | Role |
|---|---|---|
| 2025 | The Copenhagen Test | Cobb |
| 2024 | The Sticky | Charlie |
| 2022 | 61st Street | Officer Logan |
| 2020 | Perry Mason | Thomas Milligan |
| 2020 | Your Honor | Father Jay |
| 2019 | The Kelly Clarkson Show | Self |
| 2019 | City on a Hill | Jimmy Ryan |
| 2017 | The Last Tycoon | Max Miner |
| 2015 | Killjoys | Grayson Hicks |
| 2014 | Halt and Catch Fire | Tom Rendon |
| 2013 | Hannibal | Randall Tier |
| 2010 | Republic of Doyle | Des Courtney |
| 2009 | Warehouse 13 | Jerry Hoffler |