Mark O'Brien
- Known for
- Acting
- Born
- May 7, 1984
- Birthplace
- St. Johns, Newfoundland, Canada
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
- Soma
Soma TBA
as Paul
Little One TBA
Actor
- Good in the Room
Good in the Room TBA
as Charlie, Writer, Executive Producer
- Nice People
Nice People TBA
Actor, Director
- Better People
Better People TBA
as John, Director, Writer, Editor
The Outer Threat 2026
as Daniel Ashford
The Voices of Our Mother 2026
as William, Director, Writer
Nuremberg 2025
as Colonel John Amen
The Memory Keeper 2025
as Elizeus Carrier
Shadow of God 2025
as Mason Harper
Seven Veils 2025
as Paul
Topper 2025
as Topper
Blue Bayou 2021
as Ace
The Righteous 2021
as Aaron Smith, Executive Producer, Director, Writer
Hammer 2019
as Chris Davis
Marriage Story 2019
as Carter Mitchum
Ready or Not 2019
as Alex
Goalie 2019
as Terry Sawchuk, Executive Producer
State Like Sleep 2019
as Darren
The Front Runner 2018
as Billy Shore
Bad Times at the El Royale 2018
as Larsen Rogers
Kin 2018
as Jake
The Darkest Minds 2018
as Rob Meadows
How It Ends 2018
as Jeremiah
Anon 2018
as Cyrus Frear
Parallel 2018
as Josh
Arrival 2016
as Captain Marks
Wanderer 2016
as Eric, Director, Producer
The Dark Stranger 2016
as Mark
How to Plan an Orgy in a Small Town 2015
as Bruce Buck
End of Days, Inc. 2015
as Jason
Dennis 2015
as Dennis, Producer
- Sweetieface
Sweetieface 2013
as Sam, Director, Producer, Editor
Beat Down 2012
as Michael
Kathy 2011
Director
Snarbuckled 2010
as Jacob O'Higgins
- Brad
Brad 2010
as Brad, Producer, Editor
Grown Up Movie Star 2010
as Will
- Mum's the Word
Mum's the Word 2009
as Curtis
- Quiet at Dawn
Quiet at Dawn 2009
as Watts
- Cut from the Same Cloth
Cut from the Same Cloth 2009
as Jack Cochrane
Heartless Disappearance Into Labrador Seas 2008
as Charlie
- Epilogue
Epilogue 2008
as Henry
- Pretty Girls
Pretty Girls 2008
Director, Writer, Editor, Cinematography
The One That Got Away 2008
as Tommy Palchek
The Four Horsemen 2008
as Eric Rollins
Credits from TMDB.