Mark O'Brien

Born: 7th of May 1984 (41 years old)

Biography:
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).

Mark O'Brien's Filmography

Nuremberg

Nuremberg

  •   Movie
  • 2025
Colonel John Amen
Seven Veils

Seven Veils

  •   Movie
  • 2025
Paul
The Sticky

The Sticky

  •   TV Show
  • 2024
Charlie
61st Street

61st Street

  •   TV Show
  • 2022
Officer Logan
Blue Bayou

Blue Bayou

  •   Movie
  • 2021
Ace
Hammer

Hammer

  •   Movie
  • 2019
Chris Davis
Marriage Story

Marriage Story

  •   Movie
  • 2019
Carter Mitchum
Ready or Not

Ready or Not

  •   Movie
  • 2019
Alex Le Domas
City on a Hill

City on a Hill

  •   TV Show
  • 2019
Jimmy Ryan
The Front Runner

The Front Runner

  •   Movie
  • 2018
Billy Shore
Bad Times at the El Royale

Bad Times at the El Royale

  •   Movie
  • 2018
Larsen Rogers
Kin

Kin

  •   Movie
  • 2018
Jake
The Darkest Minds

The Darkest Minds

  •   Movie
  • 2018
Rob Meadows
How It Ends

How It Ends

  •   Movie
  • 2018
Jeremiah
Anon

Anon

  •   Movie
  • 2018
Cyrus Frear
The Last Tycoon

The Last Tycoon

  •   TV Show
  • 2017
Max Miner
Arrival

Arrival

  •   Movie
  • 2016
Captain Marks
Hannibal

Hannibal

  •   TV Show
  • 2013
Randall Tier
The Copenhagen Test

The Copenhagen Test

TV Show
27th Dec 2025
🚀 Pre-Release