
Mark O'Brien
Acting
Born 1984-05-07 · 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).
Acting

The Voices of Our Mother
William

The Copenhagen Test
Edmund Cobb

Nuremberg
Colonel John Amen

The Memory Keeper
Elizeus Carrier

Shadow of God
Mason Harper

Seven Veils
Paul

Topper
Topper

The Sticky
Charlie

61st Street
Officer Logan

Blue Bayou
Ace

The Righteous
Aaron Smith

Your Honor
Father Jay

Perry Mason
Thomas Milligan

Hammer
Chris Davis

Marriage Story
Carter Mitchum

The Kelly Clarkson Show
Self

Ready or Not
Alex

City on a Hill
Jimmy Ryan

Goalie
Terry Sawchuk

State Like Sleep
Darren

The Front Runner
Billy Shore

Bad Times at the El Royale
Larsen Rogers

Kin
Jake

The Darkest Minds
Rob Meadows

How It Ends
Jeremiah

Anon
Cyrus Frear

Parallel
Josh

The Last Tycoon
Max Miner

Arrival
Captain Marks

Wanderer
Eric
Crew

The Voices of Our Mother
Director

The Voices of Our Mother
Writer

The Righteous
Executive Producer

The Righteous
Director

The Righteous
Writer

Goalie
Executive Producer

Wanderer
Director

Wanderer
Producer

Dennis
Producer
Sweetieface
Director
Sweetieface
Producer
Sweetieface
Editor

Kathy
Director
Brad
Producer
Brad
Editor
Pretty Girls
Director
Pretty Girls
Writer
Pretty Girls
Editor
Pretty Girls
Cinematography