About

Known credits:
50
Birthday:
1984-05-07
Place of birth:
St. Johns, Newfoundland, Canada
Website:
N/A

Mark O'Brien

Overview

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

Acting
2025 Shadow of God Actor Mason Harper N/A
N/A
2025 Seven Veils Actor Paul 59
Average
2021 Blue Bayou Actor Ace 64
Fair
2021 The Righteous Actor Aaron Smith 59
Average
2019 Hammer Actor Chris Davis 58
Average
2019 Marriage Story Actor Carter Mitchum 76
Good
2019 Ready or Not Actor Alex Le Domas 68
Fair
2019 Goalie Actor Terry Sawchuk 59
Average
2019 State Like Sleep Actor Darren 58
Average
2018 The Front Runner Actor Billy Shore 58
Average
2018 Bad Times at the El Royale Actor Larsen Rogers 67
Fair
2018 Kin Actor Jake 60
Fair
2018 The Darkest Minds Actor Rob Meadows 68
Fair
2018 How It Ends Actor Jeremiah 54
Average
2018 Anon Actor Cyrus Frear 59
Average
2018 Parallel Actor Josh 59
Average
2017 The Last Tycoon Actor Max Miner 70
Good
2016 Arrival Actor Captain Marks 75
Good
2016 The Dark Stranger Actor Mark 58
Average
2015 How to Plan an Orgy in a Small Town Actor Bruce Buck 57
Average
2015 End of Days, Inc. Actor Jason 58
Average
2015 Dennis Actor Dennis N/A
N/A
2012 Beat Down Actor Michael N/A
N/A
2010 Snarbuckled Actor Jacob O'Higgins N/A
N/A
2010 Brad Actor Brad N/A
N/A
2010 Republic of Doyle Actor Des Courtney 69
Fair
2009 Mum's the Word Actor Curtis N/A
N/A
2009 Grown Up Movie Star Actor Will 58
Average
2009 Quiet at Dawn Actor Watts N/A
N/A
2009 Cut from the Same Cloth Actor Jack Cochrane N/A
N/A
2008 Heartless Disappearance Into Labrador Seas Actor Charlie N/A
N/A
2008 Epilogue Actor Henry N/A
N/A
2008 The Four Horsemen Actor Eric Rollins 58
Average
The Voices of Our Mother Actor William N/A
N/A
Falsehood Actor Elizeus Carrier N/A
N/A
Let The Games Begin: The Making Of Ready Or Not Actor Mark O'Brien N/A
N/A
Nuremberg Actor Col. John Amen N/A
N/A
The Embers and the Stars Actor N/A
N/A
Copenhagen Actor Cobb N/A
N/A

Directing
2021 The Righteous Directing Director 59
Average
2016 Wanderer Directing Director N/A
N/A
2011 Kathy Directing Director N/A
N/A
The Voices of Our Mother Directing Director N/A
N/A

Writing
2021 The Righteous Writing Writer 59
Average
The Voices of Our Mother Writing Writer N/A
N/A

Production
2021 The Righteous Production Executive Producer 59
Average
2019 Goalie Production Executive Producer 59
Average
2015 Dennis Production Producer N/A
N/A
2010 Brad Production Producer N/A
N/A

Editing
2010 Brad Editing Editor N/A
N/A