Personal Info
- Known ForActing
- GenderMale
- Birthday1984-05-07 (40 years)
- Place of Birth St. Johns, Newfoundland, Canada
- Also Known AsMark O’Brien
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).
Acting Career
- 2025
Seven Veils
As: Paul
- 2024
The Sticky
As: Charlie
- 2022
61st Street
As: Officer Logan
- 2021
Blue Bayou
As: Ace
- 2021
The Righteous
As: Aaron Smith
- 2020
Your Honor
As: Father Jay
- 2020
Perry Mason
As: Thomas Milligan
- 2019
Hammer
As: Chris Davis
- 2019
Marriage Story
As: Carter Mitchum
- 2019
Ready or Not
As: Alex Le Domas
2019City on a Hill
As: Jimmy Ryan
2019Goalie
As: Terry Sawchuk
2019State Like Sleep
As: Darren
2018The Front Runner
As: Billy Shore
- 2018
Bad Times at the El Royale
As: Larsen Rogers
2018Kin
As: Jake
- 2018
The Darkest Minds
As: Rob Meadows
2018How It Ends
As: Jeremiah
2018Anon
As: Cyrus Frear
2018Parallel
As: Josh
2017The Last Tycoon
As: Max Miner
- 2016
Arrival
As: Captain Marks
2016The Dark Stranger
As: Mark
2015How to Plan an Orgy in a Small Town
As: Bruce Buck
2015Killjoys
As: Grayson Hicks
2015End of Days, Inc.
As: Jason
2015Dennis
As: Dennis
2014Halt and Catch Fire
As: Tom Rendon
2013Hannibal
As: Randall Tier
2012Beat Down
As: Michael
2010Snarbuckled
As: Jacob O'Higgins
2010Republic of Doyle
As: Des Courtney
2009Grown Up Movie Star
As: Will
2009Warehouse 13
As: Jerry Hoffler
2008Heartless Disappearance Into Labrador Seas
As: Charlie
2008The Four Horsemen
As: Eric Rollins