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 61st Street

as

2022
Parallel

as Josh

2018
Blue Bayou

as Ace

2021
The Righteous

as Aaron Smith

2021
State Like Sleep

as Darren

2019
Marriage Story

as

2019
Ready or Not

as Alex Le Domas

2019
Anon

as Cyrus Frear

2018
The Darkest Minds

as Rob Meadows

2018
Bad Times at the El Royale

as

2018
How It Ends

as Jeremiah

2018
The Front Runner

as Billy Shore

2018
The Last Tycoon

as Max Miner

2017
Arrival

as Captain Marks

2016
The Dark Stranger

as Mark

2016
End of Days, Inc.

as Jason

2015
How to Plan an Orgy in a Small Town

as Bruce Buck

2016
Republic of Doyle

as Des Courtney

2010
The Four Horsemen

as Eric Rollins

2008
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Mark O'Brien Mark O'Brien

Birthday

1984-05-07

Place of Birth

Canada

Biography

Mark O'Brien (born May 7, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.
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