Person
Acting
1
May 7, 1984
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).
7.6
Movie
2016
7.7
2019
7.1
6.8
2018
8.3
TV
2013
7.0
8.1
2020
5.3
6.0
2025
2009
6.1
5.6
2026
6.4
6.6
0
5.7
7.2
2024
6.2
2022
7.4
2021
6.3
5.4
7.3
4.7
5.9
2017
5.0
4.9
5.1
2015
6.9
5.8
7.9
2014
2012
2010
2008
4.3
