Mark O'Brien
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
- The Kelly Clarkson Show (2019)
- Hannibal (2013)
- Warehouse 13 (2009)
- Arrival (2016)
- Halt and Catch Fire (2014)
- Killjoys (2015)
- Republic of Doyle (2010)
- Perry Mason (2020)
- Your Honor (2020)
- City on a Hill (2019)
- Ready or Not (2019)
- Nuremberg (2025)
- The Copenhagen Test (2025)
- Marriage Story (2019)
- The Last Tycoon (2017)
- 61st Street (2022)
- Bad Times at the El Royale (2018)
- The Sticky (2024)
- The Darkest Minds (2018)
- How It Ends (2018)