Mark O'Brien

Arrival2016

As Captain Marks

TMDb 7.6 / 10

Ready or Not2019

As Alex

TMDb 7.1 / 10

Nuremberg2025

As Colonel John Amen

TMDb 7.6 / 10

Marriage Story2019

As Carter Mitchum

TMDb 7.7 / 10

Bad Times at the El Royale2018

As Larsen Rogers

TMDb 6.8 / 10

The Darkest Minds2018

As Rob Meadows

TMDb 7.0 / 10

How It Ends2018

As Jeremiah

TMDb 5.3 / 10

Anon2018

As Cyrus Frear

TMDb 6.0 / 10

The Front Runner2018

As Billy Shore

TMDb 5.9 / 10

Blue Bayou2021

As Ace

TMDb 7.4 / 10

The Outer Threat2026

As Daniel Ashford

TMDb 5.6 / 10

Kin2018

As Jake

TMDb 6.1 / 10

Shadow of God2025

As Mason Harper

TMDb 5.7 / 10

Seven Veils2025

As Paul

TMDb 5.5 / 10

Parallel2018

As Josh

TMDb 6.0 / 10

How to Plan an Orgy in a Small Town2015

As Bruce Buck

TMDb 5.1 / 10

State Like Sleep2019

As Darren

TMDb 4.7 / 10

The Memory Keeper2025

As Elizeus Carrier

TMDb 7.0 / 10

Beat Down2012

As Michael

As Henry

The Dark Stranger2016

As Mark

TMDb 4.9 / 10

Goalie2019

As Terry Sawchuk

TMDb 6.8 / 10

Hammer2019

As Chris Davis

TMDb 5.4 / 10

The Voices of Our Mother2026

As William

TMDb 6.4 / 10

As John

Heartless Disappearance Into Labrador Seas2008

As Charlie

The One That Got Away2008

As Tommy Palchek

TMDb 4.3 / 10

The Four Horsemen2008

As Eric Rollins

TMDb 5.9 / 10

Dennis2015

As Dennis

End of Days, Inc.2015

As Jason

TMDb 5.8 / 10

The Righteous2021

As Aaron Smith

TMDb 6.3 / 10

Grown Up Movie Star2010

As Will

TMDb 5.1 / 10

As Brad

As Charlie

Wanderer2016

As Eric

TMDb 5.0 / 10

Topper2025

As Topper

TMDb 5.3 / 10

As Curtis

As Watts

As Paul

As Jack Cochrane

Snarbuckled2010

As Jacob O'Higgins

As Sam