Mark O'Brien
Known for
Acting
Life
Born 1984 (age 42)
Born in
St. Johns, Newfoundland, Canada
Credits
View on IMDb56 acting credits
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).
Known For
Arrival
10 Nov 2016
Marriage Story
28 Sep 2019
Ready or Not
21 Aug 2019
Bad Times at the El Royale
04 Oct 2018
Hannibal
04 Apr 2013
The Darkest Minds
25 Jul 2018
How It Ends
13 Jul 2018
Anon
03 May 2018
Photos
Filmography
2026
- The Outer Threatas Daniel Ashford
- The Voices of Our Motheras William
2025
- The Copenhagen Testas Edmund Cobb8 episodes
- Nurembergas Colonel John Amen
- The Memory Keeperas Elizeus Carrier
- Shadow of Godas Mason Harper
- Seven Veilsas Paul
- Topperas Topper
2024
- The Stickyas Charlie1 episode
2022
- 61st Streetas Officer Logan8 episodes
2021
- Blue Bayouas Ace
- The Righteousas Aaron Smith
2020
- Your Honoras Father Jay3 episodes
- Perry Masonas Thomas Milligan7 episodes
2019
- Hammeras Chris Davis
- Marriage Storyas Carter Mitchum
- Ready or Notas Alex
- City on a Hillas Jimmy Ryan14 episodes
- Goalieas Terry Sawchuk
- State Like Sleepas Darren
2018
- The Front Runneras Billy Shore
- Bad Times at the El Royaleas Larsen Rogers
- Kinas Jake
- The Darkest Mindsas Rob Meadows
- How It Endsas Jeremiah
- Anonas Cyrus Frear
- Parallelas Josh
2017
- The Last Tycoonas Max Miner9 episodes
2016
- Arrivalas Captain Marks
- Wandereras Eric
- The Dark Strangeras Mark
2015
- How to Plan an Orgy in a Small Townas Bruce Buck
- Killjoysas Grayson Hicks1 episode
- End of Days, Inc.as Jason
- Dennisas Dennis
2014
- Halt and Catch Fireas Tom Rendon15 episodes
2013
- Hannibalas Randall Tier2 episodes
- Sweetiefaceas Sam
2012
- Beat Downas Michael
2010
- Snarbuckledas Jacob O'Higgins
- Bradas Brad
- Grown Up Movie Staras Will
- Republic of Doyleas Des Courtney77 episodes
2009
- Mum's the Wordas Curtis
- Quiet at Dawnas Watts
- Warehouse 13as Jerry Hoffler1 episode
- Cut from the Same Clothas Jack Cochrane
2008
- Heartless Disappearance Into Labrador Seasas Charlie
- Epilogueas Henry
- The One That Got Awayas Tommy Palchek
- The Four Horsemenas Eric Rollins