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Acting · Filmography
Mark O'Brien
Born May 7, 1984 (age 42) St. Johns, Newfoundland, Canada
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).
Filmography
Where to watch Mark O'Brien’s work in 
Oman
Top 30 by popularity. Click any title to see exactly which OTT carries it in Oman.
6.3
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The Kelly Clarkson Show
2019
8.3
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Hannibal
2013
7.7
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Warehouse 13
2009
7.0
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Republic of Doyle
2010
7.6
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Arrival
2016
6.9
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Killjoys
2015
7.2
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Perry Mason
2020
7.9
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Halt and Catch Fire
2014
7.1
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Ready or Not
2019
7.6
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Nuremberg
2025
8.1
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Your Honor
2020
7.2
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City on a Hill
2019
5.3
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How It Ends
2018
6.5
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The Copenhagen Test
2025
7.0
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The Darkest Minds
2018
7.7
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Marriage Story
2019
6.9
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61st Street
2022
7.2
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The Sticky
2024
7.0
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The Last Tycoon
2017
6.8
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Bad Times at the El Royale
2018
6.0
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Anon
2018
6.1
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Kin
2018
5.9
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The Front Runner
2018
5.7
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Shadow of God
2025
5.9
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The Voices of Our Mother
2026
5.7
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Seven Veils
2025
6.0
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Parallel
2018
7.4
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Blue Bayou
2021
6.3
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The Righteous
2021
5.1
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How to Plan an Orgy in a Small Town
2015