Mark O'Brien

Mark O'Brien

41 · Born: May 7, 1984

Personal Details

Official Socials
BornMay 7, 1984 St. John's, Newfoundland and Labrador, Canada
Relatives
  • Sibling (Sibling)

Biography

Mark O'Brien is a talented and accomplished actor and filmmaker, having garnered numerous accolades for his work in the entertainment industry. His educational background is rooted in the humanities, having earned a Bachelor of Arts degree from Memorial University of Newfoundland with a major in English.

Born into a family with a strong sense of dedication and hard work, Mark's mother was a compassionate and skilled nurse, while his father was a dependable and rugged truck driver. Additionally, he has three older sisters, each with their own unique personalities and strengths.

In his personal life, Mark has been blessed with a loving partner, actress Georgina Reilly, whom he met on the set of the popular television show Republic of Doyle. The couple exchanged vows on January 6, 2013, marking the beginning of a new chapter in their lives together.

Career

2025
Topper
Topper as Topper
Shadow of God
Shadow of God as Mason Harper
Nuremberg
Nuremberg as Colonel John Amen
Falsehood
Falsehood as Elizeus Carrier
2022
61st Street
61st Street as Officer Logan
2021
The Righteous
The Righteous as Aaron Smith
2019
Goalie
Goalie as Terry Sawchuk
Ready or Not
Ready or Not as Alex Le Domas
Hammer
Hammer as Chris Davis
Marriage Story
Marriage Story as Carter Mitchum
City on a Hill
City on a Hill as Jimmy Ryan
2018
The Front Runner
The Front Runner as Billy Shore
How It Ends
How It Ends as Jeremiah
Anon
Anon as Cyrus Frear
Parallel
Parallel as Josh
The Darkest Minds
The Darkest Minds as Rob Meadows
Kin
Kin as Jake
2017
The Last Tycoon
The Last Tycoon as Max Miner
2016
Arrival
Arrival as Captain Marks
2015
2014
Republic of Doyle
Republic of Doyle as Des Courtney
2012
Beat Down
Beat Down as Michael
2010
Snarbuckled
Snarbuckled as Jacob O'Higgins
2008
The Four Horsemen
The Four Horsemen as Eric Rollins
The One That Got Away
The One That Got Away as Tommy Palchek
2021
The Righteous
The Righteous as Director, Writer