Mark O'Brien
Actor
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).
Filmography
Arrival
as Captain Marks 2016
Marriage Story
as Carter Mitchum 2019
Ready or Not
as Alex Le Domas 2019
Bad Times at the El Royale
as Larsen Rogers 2018
The Darkest Minds
as Rob Meadows 2018
How It Ends
as Jeremiah 2018
Anon
as Cyrus Frear 2018
Kin
as Jake 2018
Nuremberg
as Colonel John Amen 2025
The Front Runner
as Billy Shore 2018
Blue Bayou
as Ace 2021
Parallel
as Josh 2018
How to Plan an Orgy in a Small Town
as Bruce Buck 2015
Shadow of God
as Mason Harper 2025
Seven Veils
as Paul 2025
State Like Sleep
as Darren 2019
The Dark Stranger
as Mark 2016