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).
Movies & Shows
Also known for
Titles we don't currently carry.
The Copenhagen Test
as Edmund Cobb
2025 Series
Shadow of God
2025 Movie
61st Street
as Officer Logan
2022 Series
Your Honor
as Father Jay
2020 Series
Perry Mason
as Thomas Milligan
2020 Series
Marriage Story
2019 Movie
The Kelly Clarkson Show
as Self
2019 Series
City on a Hill
as Jimmy Ryan
2019 Series
Bad Times at the El Royale
2018 Movie
Kin
2018 Movie
The Darkest Minds
2018 Movie
How It Ends
2018 Movie