Mark O'Brien
Mark O'Brien is known for Arrival (2016), Marriage Story (2019), Ready or Not (2019).
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).
Questions about Mark O'Brien
How many Mark O'Brien films are in the catalogue?
The CineQuiz catalogue has 39 films with Mark O'Brien, from 2008 to 2026.
What is the best rated Mark O'Brien film?
The best rated Mark O'Brien film in the catalogue is Marriage Story (2019), rated 7.7.
What was the first Mark O'Brien film?
The first Mark O'Brien film in the catalogue is How to Plan an Orgy in a Small Town, from 2015.
Who has Mark O'Brien worked with the most?
In the catalogue, Mark O'Brien shares the most credits with Dan Cohen (3 films), Shawn Levy (3 films) and Bradley J. Fischer (2 films).
People data: TMDb.
Known for
Trivia
- Also works as
- television director · film producer · screenwriter · film director
- Studied at
- Memorial University of Newfoundland · Marymount Manhattan College
- Spouse
- Georgina Reilly
Trivia from Wikidata, licensed CC0.
Full filmography
44 films — 39 in the catalogue
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5.7 The Outer Threat
2026 · Daniel Ashford
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6.4 The Voices of Our Mother
2026 · William
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7.6 Nuremberg
2025 · Colonel John Amen
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7.0 The Memory Keeper
2025 · Elizeus Carrier
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5.7 Shadow of God
2025 · Mason Harper
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5.5 Seven Veils
2025 · Paul
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5.3 Topper
2025 · Topper
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7.4 Blue Bayou
2021 · Ace
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6.3 The Righteous
2021 · Aaron Smith
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5.4 Hammer
2019 · Chris Davis
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7.7 Marriage Story
2019 · Carter Mitchum
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7.1 Ready or Not
2019 · Alex
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6.8 Goalie
2019 · Terry Sawchuk
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4.7 State Like Sleep
2019 · Darren
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5.9 The Front Runner
2018 · Billy Shore
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6.8 Bad Times at the El Royale
2018 · Larsen Rogers
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6.1 Kin
2018 · Jake
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7.0 The Darkest Minds
2018 · Rob Meadows
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5.3 How It Ends
2018 · Jeremiah
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6.0 Anon
2018 · Cyrus Frear
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6.0 Parallel
2018 · Josh
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7.6 Arrival
2016 · Captain Marks
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5.0 Wanderer
2016 · Eric
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4.9 The Dark Stranger
2016 · Mark
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5.1 How to Plan an Orgy in a Small Town
2015 · Bruce Buck
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5.8 End of Days, Inc.
2015 · Jason
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Dennis
2015 · Dennis
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Sweetieface
2013 · Sam
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Beat Down
2012 · Michael
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Snarbuckled
2010 · Jacob O'Higgins
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Brad
2010 · Brad
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5.1 Grown Up Movie Star
2010 · Will
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Mum's the Word
2009 · Curtis
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Quiet at Dawn
2009 · Watts
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Cut from the Same Cloth
2009 · Jack Cochrane
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Heartless Disappearance Into Labrador Seas
2008 · Charlie
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Epilogue
2008 · Henry
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4.3 The One That Got Away
2008 · Tommy Palchek
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5.9 The Four Horsemen
2008 · Eric Rollins
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Better People
no date · John
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Nice People
no date
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Good in the Room
no date · Charlie
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Little One
no date
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Soma
no date · Paul
Series and TV shows
13 titles
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6.6
The Copenhagen Test
2025 · Edmund Cobb · 8 ep.
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7.2
The Sticky
2024 · Charlie
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6.2
61st Street
2022 · Officer Logan · 8 ep.
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7.2
Perry Mason
2020 · Thomas Milligan · 7 ep.
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8.1
Your Honor
2020 · Father Jay · 3 ep.
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7.3
City on a Hill
2019 · Jimmy Ryan · 14 ep.
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6.3
The Kelly Clarkson Show
2019 · Appearance
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7.0
The Last Tycoon
2017 · Max Miner · 9 ep.
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6.9
Killjoys
2015 · Grayson Hicks
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7.9
Halt and Catch Fire
2014 · Tom Rendon · 15 ep.
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8.3
Hannibal
2013 · Randall Tier · 2 ep.
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7.0
Republic of Doyle
2010 · Des Courtney · 77 ep.
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7.7
Warehouse 13
2009 · Jerry Hoffler
People data: TMDb.
Cast
