Biography
Mark O'Brien Story
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).
Celebrity Profile
Since 1984
Mark O'Brien
Mark O'Brien is known for acting, with popular credits including Seven Veils, The Four Horsemen, Grown Up Movie Star, Cut from the Same Cloth.
Born 07 May 1984
St. Johns, Newfoundland, Canada
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12 Oct 2026
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Known for Seven Veils, The Four Horsemen, Grown Up Movie Star, Cut from the Same Cloth.
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Mark O'Brien Movies & TV
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Seven Veils
movie
The Four Horsemen
movie
Grown Up Movie Star
movie
Heartless Disappearance Into Labrador Seas
movie
Shadow of God
movie
Snarbuckled
movie
The Dark Stranger
movie
Nuremberg
movie
End of Days, Inc.
movie
The Voices of Our Mother
movie
Beat Down
movie
Arrival
movie
Anon
movie
State Like Sleep
movie
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People connected to Mark O'Brien
Aaron Ashmore
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Michael Stuhlbarg
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Samara Weaving
Acting
Connected through Ready or Not
Mackenzie Davis
Acting
Connected through Halt and Catch Fire
Gillian Anderson
Acting
Connected through Hannibal
Jeremy Renner
Acting
Connected through Arrival
Mads Mikkelsen
Acting
Connected through Hannibal
Andie MacDowell
Acting
Connected through Ready or Not
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Filmography
Mark O'Brien Career Timeline
57 recent credits shown
2026
The Outer Threat
as Daniel Ashford
movie
2026
The Voices of Our Mother
as William
movie
2025
The Copenhagen Test
as Edmund Cobb
tv
2025
Nuremberg
as Colonel John Amen
movie
2025
The Memory Keeper
as Elizeus Carrier
movie
2025
Shadow of God
as Mason Harper
movie
2025
Seven Veils
as Paul
movie
2025
Topper
as Topper
movie
2024
The Sticky
as Charlie
tv
2022
61st Street
as Officer Logan
tv
2021
Blue Bayou
as Ace
movie
2021
The Righteous
as Aaron Smith
movie
2020
Your Honor
as Father Jay
tv
2020
Perry Mason
as Thomas Milligan
tv
2019
Hammer
as Chris Davis
movie
2019
Marriage Story
as Carter Mitchum
movie
2019
The Kelly Clarkson Show
as Self
tv
2019
Ready or Not
as Alex
movie
2019
City on a Hill
as Jimmy Ryan
tv
2019
Goalie
as Terry Sawchuk
movie
2019
State Like Sleep
as Darren
movie
2018
The Front Runner
as Billy Shore
movie
2018
Bad Times at the El Royale
as Larsen Rogers
movie
2018
Kin
as Jake
movie
2018
The Darkest Minds
as Rob Meadows
movie
2018
How It Ends
as Jeremiah
movie
2018
Anon
as Cyrus Frear
movie
2018
Parallel
as Josh
movie
2017
The Last Tycoon
as Max Miner
tv
2016
Arrival
as Captain Marks
movie
2016
Wanderer
as Eric
movie
2016
The Dark Stranger
as Mark
movie
2015
How to Plan an Orgy in a Small Town
as Bruce Buck
movie
2015
Killjoys
as Grayson Hicks
tv
2015
End of Days, Inc.
as Jason
movie
2015
Dennis
as Dennis
movie
2014
Halt and Catch Fire
as Tom Rendon
tv
2013
Hannibal
as Randall Tier
tv
2013
Sweetieface
as Sam
movie
2012
Beat Down
as Michael
movie
2010
Snarbuckled
as Jacob O'Higgins
movie
2010
Brad
as Brad
movie
2010
Grown Up Movie Star
as Will
movie
2010
Republic of Doyle
as Des Courtney
tv
2009
Mum's the Word
as Curtis
movie
2009
Quiet at Dawn
as Watts
movie
2009
Warehouse 13
as Jerry Hoffler
tv
2009
Cut from the Same Cloth
as Jack Cochrane
movie
2008
Heartless Disappearance Into Labrador Seas
as Charlie
movie
2008
Epilogue
as Henry
movie
2008
The One That Got Away
as Tommy Palchek
movie
2008
The Four Horsemen
as Eric Rollins
movie
TBA
Better People
as John
movie
TBA
Nice People
movie
TBA
Good in the Room
as Charlie
movie
TBA
Little One
movie
TBA
Soma
as Paul
movie
FAQ
Questions About Mark O'Brien
Who is Mark O'Brien?
Mark O'Brien is known for acting, with popular credits including Seven Veils, The Four Horsemen, Grown Up Movie Star, Cut from the Same Cloth.
How old is Mark O'Brien?
Mark O'Brien is 42 years old, based on the birthday listed by TMDB.
What is Mark O'Brien famous for?
Mark O'Brien is known for credits including Seven Veils, The Four Horsemen, Grown Up Movie Star, Cut from the Same Cloth, Heartless Disappearance Into Labrador Seas.
Where can I read the latest news about Mark O'Brien?
You can find cached celebrity news summaries and original source links on this Yungfei.com profile page.
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