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State Like Sleep

as Darren

2019
Marriage Story

as Carter

2019
City on a Hill

as Jimmy Ryan

2019
Ready or Not

as Alex Le Domas

2019
Anon

as Cyrus Frear

2018
Parallel

as Josh

2018
How It Ends

as Jeremiah

2018
The Darkest Minds

as Rob Meadows

2018
Kin

as Jake

2018
The Dark Stranger

as Mark

2016
Arrival

as Captain Marks

2016
The Last Tycoon

as Max Miner

2016
End of Days, Inc.

as Jason

2015
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.

Mark O'Brien

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