Cast
Mark O'Brien
Acting
Cast
Mark O'Brien
Known for
Acting
Born
1984-05-07
From
St. Johns, Newfoundland, Canada
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).
★7.1
MOVIE2019
Ready or Not
as Alex
★7.6
MOVIE2025
Nuremberg
as Colonel John Amen
★7.6
MOVIE2016
Arrival
as Captain Marks
★5.8
MOVIE2026
The Outer Threat
★7.7
MOVIE2019
Marriage Story
as Carter Mitchum
★6.8
MOVIE2018
Bad Times at the El Royale
as Larsen Rogers
★7.0
MOVIE2018
The Darkest Minds
as Rob Meadows
MOVIE2025
The Memory Keeper
as Elizeus Carrier
★5.3
MOVIE2018
How It Ends
as Jeremiah
★6.0
MOVIE2018
Anon
as Cyrus Frear
★6.1
MOVIE2018
Kin
as Jake
★5.9
MOVIE2018
The Front Runner
as Billy Shore
★5.7
MOVIE2025
Shadow of God
as Mason Harper
★6.0
MOVIE2018
Parallel
as Josh
★7.4
MOVIE2021
Blue Bayou
as Ace
★3.8
MOVIE2008
The Four Horsemen
as Eric Rollins
MOVIE2008
Epilogue
as Henry
MOVIETBA
Little One
MOVIETBA
Better People
as John
★6.4
MOVIE2026
The Voices of Our Mother
as William
MOVIE2010
Brad
as Brad
★5.7
MOVIE2025
Seven Veils
as Paul
★5.1
MOVIE2015
How to Plan an Orgy in a Small Town
as Bruce Buck
★4.7
MOVIE2019
State Like Sleep
as Darren
★4.3
MOVIE2008
The One That Got Away
as Tommy Palchek
★4.9
MOVIE2016
The Dark Stranger
as Mark
★5.4
MOVIE2019
Hammer
as Chris Davis
MOVIE2009
Quiet at Dawn
as Watts
MOVIE2015
Dennis
as Dennis
MOVIETBA
Good in the Room
as Charlie
★6.3
MOVIE2021
The Righteous
as Aaron Smith
★5.8
MOVIE2015
End of Days, Inc.
as Jason
★6.8
MOVIE2019
Goalie
as Terry Sawchuk
★5.1
MOVIE2010
Grown Up Movie Star
as Will
MOVIETBA
Nice People
MOVIE2016
Wanderer
as Eric
MOVIE2012
Beat Down
as Michael
MOVIE2009
Mum's the Word
as Curtis
MOVIE2009
Cut from the Same Cloth
as Jack Cochrane
★5.3
MOVIE2025
Topper
as Topper
MOVIE2010
Snarbuckled
as Jacob O'Higgins
MOVIE2008
Heartless Disappearance Into Labrador Seas
as Charlie
MOVIE2013
Sweetieface
as Sam