Acting
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).
Titles
The Kelly Clarkson Show
2019
Hannibal
2013
Warehouse 13
2009
Arrival
2016
The Copenhagen Test
2025
Ready or Not
2019
Killjoys
2015
Halt and Catch Fire
2014
Nuremberg
2025
Perry Mason
2020
Republic of Doyle
2010
Your Honor
2020
City on a Hill
2019
The Darkest Minds
2018
Marriage Story
2019
Bad Times at the El Royale
2018
The Sticky
2024
61st Street
2022
The Last Tycoon
2017
Anon
2018
The Front Runner
2018
Kin
2018
The Outer Threat
2026
How It Ends
2018
Goalie
2019
Parallel
2018
Seven Veils
2025
Blue Bayou
2021
How to Plan an Orgy in a Small Town
2015
Shadow of God
2025
The Memory Keeper
2025
State Like Sleep
2019
The Righteous
2021
Beat Down
2012
The Four Horsemen
2008
The Dark Stranger
2016