
Mark O'Brien
- Date of Birth: 1984-05-07
- Place of Birth: St. Johns, Newfoundland, Canada
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).... 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).

Kin
Science Fiction, Action, Adventure, Thriller • 2018 August

Parallel
Science Fiction, Fantasy, Horror • 2018 April

Anon
Science Fiction, Crime, Mystery, Thriller • 2018 May

The Front Runner
Drama, History • 2018 November

Seven Veils
Drama • 2025 March

End of Days, Inc.
Comedy, Science Fiction • 2015 April

Grown Up Movie Star
Drama • 2009 October

Hammer
Crime, Drama, Thriller • 2019 December

Shadow of God
Horror • 2025 March

How It Ends
Science Fiction, Thriller, Mystery, Action, Adventure • 2018 July