Mark O'Brien

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).

Acting

2025

2025

Nuremberg
Movie

Colonel John Amen

2025

Falsehood
Movie

Elizeus Carrier

2025

Shadow of God
Movie

Mason Harper

2025

2025

2024

2022

61st Street
Tv

Officer Logan

2021

2020

Your Honor
Tv

Father Jay

2019

Hammer
Movie

Chris Davis

2019

Marriage Story
Movie

Carter Mitchum

2019

Ready or Not
Movie

Alex Le Domas

2019

2019

Goalie
Movie

Terry Sawchuk

2018

2018

2018

2018

2018

Anon
Movie

Cyrus Frear

2017

2016

Arrival
Movie

Captain Marks

2015

Killjoys
Tv

Grayson Hicks

2015

2014

2013

Hannibal
Tv

Randall Tier

2012

2010

Snarbuckled
Movie

Jacob O'Higgins

2008

Directing

2021

2011

Kathy
Movie

Director

2008

2008

Production

2021

The Righteous
Movie

Executive Producer

2019

Goalie
Movie

Executive Producer

2015

Dennis
Movie

Producer

Writing

Crew

2008

Pretty Girls
Movie

Cinematography

2008

Pretty Girls
Movie

Cinematography

Editing

Infos

Full Name
Mark O'Brien
Gender
Male
Date of Birth
5/7/1984
Also Known As

Mark O’Brien