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The Kelly Clarkson Show2019* 6.2
Warehouse 132009* 7.7
Hannibal2013* 8.3
Republic of Doyle2010* 7.0
Arrival2016* 7.6
Perry Mason2020* 7.2
Halt and Catch Fire2014* 7.9
Killjoys2015* 6.9
Ready or Not2019* 7.1
Your Honor2020* 8.1
Nuremberg2025* 7.6
City on a Hill2019* 7.3
Marriage Story2019* 7.7
Bad Times at the El Royale2018* 6.8
The Copenhagen Test2025* 6.6
61st Street2022* 6.2
The Darkest Minds2018* 7.0
How It Ends2018* 5.3
The Sticky2024* 7.2
The Last Tycoon2017* 7.0
The Front Runner2018* 5.9
Blue Bayou2021* 7.4
Anon2018* 6.0
The Outer Threat2026* 5.6
Kin2018* 6.1
Seven Veils2025* 5.5
Shadow of God2025* 5.7
How to Plan an Orgy in a Small Town2015* 5.1
Parallel2018* 6.0
Little One-* NR
The Memory Keeper2025* 7.0
State Like Sleep2019* 4.7
Better People-* NR
The Voices of Our Mother2026* 6.4
Beat Down2012* NREpilogue2008* NR
The One That Got Away2008* 4.3
Grown Up Movie Star2010* 5.1
Dennis2015* NR
The Four Horsemen2008* 5.9
Mark O'Brien
ActingBorn 7 May 1984 · age 42 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).
Known For & Filmography
The Kelly Clarkson Show2019* 6.2Warehouse 132009* 7.7Hannibal2013* 8.3Republic of Doyle2010* 7.0Arrival2016* 7.6Perry Mason2020* 7.2Halt and Catch Fire2014* 7.9Killjoys2015* 6.9Ready or Not2019* 7.1Your Honor2020* 8.1Nuremberg2025* 7.6City on a Hill2019* 7.3Marriage Story2019* 7.7Bad Times at the El Royale2018* 6.8The Copenhagen Test2025* 6.661st Street2022* 6.2The Darkest Minds2018* 7.0How It Ends2018* 5.3The Sticky2024* 7.2The Last Tycoon2017* 7.0The Front Runner2018* 5.9Blue Bayou2021* 7.4Anon2018* 6.0The Outer Threat2026* 5.6Kin2018* 6.1Seven Veils2025* 5.5Shadow of God2025* 5.7How to Plan an Orgy in a Small Town2015* 5.1Parallel2018* 6.0Little One-* NRThe Memory Keeper2025* 7.0State Like Sleep2019* 4.7Better People-* NRThe Voices of Our Mother2026* 6.4Beat Down2012* NREpilogue2008* NRThe One That Got Away2008* 4.3Grown Up Movie Star2010* 5.1Dennis2015* NRThe Four Horsemen2008* 5.9Data by TMDB. Not endorsed or certified by TMDB.