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Mark O'Brien

Mark O'Brien

Actor · Born May 7, 1984 · St. Johns, Newfoundland, Canada

IMDb

Highest rated as cast or director

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).

Acted in 46

2000s

  1. 2009

    Warehouse 13

    Jerry Hoffler · 1 episode

    76
  2. 2008

    Heartless Disappearance Into Labrador Seas

    Charlie

  3. The One That Got Away

    Tommy Palchek

  4. The Four Horsemen

    Eric Rollins

No release date

  1. Little One

    Movie

Directed 4

2020s

  1. 2026

    The Voices of Our Mother

    Director

  2. 2021

    The Righteous

    Director

2010s

  1. 2016

    Wanderer

    Director

  2. 2011

    Kathy

    Director

Produced 4

2020s

  1. 2021

    The Righteous

    Executive Producer

2010s

  1. 2019

    Goalie

    Executive Producer

  2. 2016

    Wanderer

    Producer

  3. 2015

    Dennis

    Producer

Wrote 2

2020s

  1. 2026

    The Voices of Our Mother

    Writer

  2. 2021

    The Righteous

    Writer

Appearances1