Acting
Mark O'Brien
Born May 7, 1984 · St. Johns, Newfoundland, Canada (age 42)
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
Arrival · 2016Arrival
★ 7.62016
MovieDramaScience Fiction
Taking place after alien crafts land around the world, an expert linguist is recruited by the military to determine whether they come in peace or are a threat.
Ready or Not · 2019Ready or Not
★ 7.12019
MovieHorrorComedy
A young bride's wedding night turns into her worst nightmare when her ridiculously rich in-laws force her to play a gruesome game of hide-and-seek.
Nuremberg · 2025Nuremberg
★ 7.62025
MovieHistoryDrama
In postwar Germany, an American psychiatrist must determine whether Nazi prisoners are fit to go on trial for war crimes, and finds himself in a complex battle of intellect and ethics with Hermann Göring, Hitler's right-hand man.
The Outer Threat · 2026The Outer Threat
★ 5.82026
MovieScience FictionThriller
After making a groundbreaking extraterrestrial discovery, astrophysicists Daniel and Michelle are forced to flee from home with their family — pursued through the countryside by a relentless and anonymous assailant. As their flight unfolds, the line between cosmic revelation and human paranoia blurs, leading to a tense and emotional confrontation that challenges the boundaries of understanding, science, and survival.
Bad Times at the El Royale · 2018Bad Times at the El Royale
★ 6.82018
MovieThrillerMystery
Lake Tahoe, 1969. Seven strangers, each one with a secret to bury, meet at El Royale, a decadent motel with a dark past. In the course of a fateful night, everyone will have one last shot at redemption.
Marriage Story · 2019Marriage Story
★ 7.72019
MovieDrama
A stage director and an actress struggle through a grueling, coast-to-coast divorce that pushes them to their personal extremes.
The Darkest Minds · 2018The Darkest Minds
★ 7.02018
MovieActionAdventure
After a disease kills 98% of America's children, the surviving 2% develop superpowers and are placed in internment camps. A 16-year-old girl escapes her camp and joins a group of other teens on the run from the government.
Anon · 2018Anon
★ 6.02018
MovieScience FictionCrime
Set in a near-future world where there is no privacy, ignorance or anonymity, our private memories are recorded and crime almost ceases to exist. In trying to solve a series of unsolved murders, Sal Frieland stumbles onto a young woman who appears to have subverted the system and disappeared. She has no identity, no history and no record. Sal realizes it may not be the end of crime but the beginning. Known only as 'The Girl', Sal must find her before he becomes the next victim.
Filmography
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