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Mark O'Brien

Acting

Mark O'Brien

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).

Known for

8.3

Hannibal

2013 · TV Series · Drama · Crime

7.7

Warehouse 13

2009 · TV Series · Sci-Fi & Fantasy · Comedy

7.6

Arrival

2016 · Movie · Drama · Sci-Fi

6.9

Killjoys

2015 · TV Series · Action & Adventure · Sci-Fi & Fantasy

7.6

Nuremberg

2025 · Movie · History · Drama

6.0

Anon

2018 · Movie · Sci-Fi · Crime

6.1

Kin

2018 · Movie · Sci-Fi · Action

6.0

Parallel

2018 · Movie · Sci-Fi · Fantasy

5.3

Hammer

2019 · Movie · Crime · Drama

Mark O'Brien — movies & series · Netflix Discovery