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Mark O'Brien - Actor & Filmmaker | The Couch Critic
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Mark O'Brien
Born
May 7, 1984
Age 41
Place of Birth
St. Johns, Newfoundland, Canada
Known For
Acting
Gender
Male
Career Highlights
41
Movies
13
TV Shows
8
Directed
Also Known As
Mark O’Brien
IMDb Profile
Mark O'Brien
Acting
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).
Movies
41
TV Shows
13
Director
8
7.3
Nuremberg
as
Colonel John Amen
2025
0
Falsehood
as
Elizeus Carrier
2025
5.6
Shadow of God
as
Mason Harper
2025
5.7
Seven Veils
as
Paul
2025
5.3
Topper
as
Topper
2025
7.5
Blue Bayou
as
Ace
2021
6.2
The Righteous
as
Aaron Smith
2021
5.4
Hammer
as
Chris Davis
2019
7.7
Marriage Story
as
Carter Mitchum
2019
7.0
Ready or Not
as
Alex Le Domas
2019
7.0
Goalie
as
Terry Sawchuk
2019
4.7
State Like Sleep
as
Darren
2019
5.9
The Front Runner
as
Billy Shore
2018
6.8
Bad Times at the El Royale
as
Larsen Rogers
2018
6.1
Kin
as
Jake
2018
7.0
The Darkest Minds
as
Rob Meadows
2018
5.3
How It Ends
as
Jeremiah
2018
6.0
Anon
as
Cyrus Frear
2018
6.0
Parallel
as
Josh
2018
7.6
Arrival
as
Captain Marks
2016
0
Wanderer
as
Eric
2016
4.9
The Dark Stranger
as
Mark
2016
5.1
How to Plan an Orgy in a Small Town
as
Bruce Buck
2015
5.6
End of Days, Inc.
as
Jason
2015
0
Dennis
as
Dennis
2015
0
Sweetieface
as
Sam
2013
0
Beat Down
as
Michael
2012
0
Snarbuckled
as
Jacob O'Higgins
2010
0
Brad
as
Brad
2010
0
Mum's the Word
as
Curtis
2009
5.1
Grown Up Movie Star
as
Will
2009
0
Quiet at Dawn
as
Watts
2009
0
Cut from the Same Cloth
as
Jack Cochrane
2009
0
Heartless Disappearance Into Labrador Seas
as
Charlie
2008
0
Epilogue
as
Henry
2008
4.3
The One That Got Away
as
Tommy Palchek
2008
3.8
The Four Horsemen
as
Eric Rollins
2008
0
The Voices of Our Mother
as
William
TBA
0
The Outer Threat
Cast
TBA
0
Better People
as
John
TBA
0
Nice People
Cast
TBA
0
0
0
0
0
0
0
