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).
Acted Movies
Nuremberg (2025)
Director: James Vanderbilt
Blue Bayou (2021)
Director: Justin Chon
Ready or Not (2019)
Director: Tyler Gillett
The Darkest Minds (2018)
Director: Jennifer Yuh Nelson
Arrival (2016)
Director: Denis Villeneuve