Mark O'Brien

Mark O'Brien

Born 7 May 1984 in 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).

Actor

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2016
Arrival Captain Marks
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2019
Marriage Story Carter Mitchum
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2019
Ready or Not Alex
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2018
Bad Times at the El Royale Larsen Rogers

Director

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2021
The Righteous Director
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2026
The Voices of Our Mother Director
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2016
Wanderer Director
Nice People
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TBA
Nice People Director

Producer

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2021
The Righteous Executive Producer
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2019
Goalie Executive Producer
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2016
Wanderer Producer
Good in the Room
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TBA
Good in the Room Executive Producer

Writer

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2021
The Righteous Writer
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2026
The Voices of Our Mother Writer
Good in the Room
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TBA
Good in the Room Writer
Better People
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TBA
Better People Writer

Editor

Better People
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TBA
Better People Editor
Sweetieface
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2013
Sweetieface Editor
Brad
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2010
Brad Editor
Pretty Girls
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2008
Pretty Girls Editor

Crew

Pretty Girls
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2008
Pretty Girls Cinematography