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person_profile-Mark O'Brien

Mark O'Brien Age: 40

Actor | Producer

    Mark O'Brien (born May 7, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.

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Videos & Photos

All 3 Photos

filmography

Full Filmography
Shadow of God

Mason Harper ( Actor )

... 2025

... 2025

Topper

Topper ( Actor )

... 2025

Fullname:

Mark O'Brien

Date of Birth:

May 07, 1984

Country of birth:

Canada

Biography of

Mark O'Brien

    Mark O'Brien (born May 7, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.

Photos of

Mark O'Brien

Photos ( 3 Photos

Filmography of

Mark O'Brien

Found 26 Movies in total

Shadow of God

Mason Harper ( Actor )

... 2025

... 2025

Topper

Topper ( Actor )

... 2025

Blue Bayou

Ace ( Actor )

... 2021

The Righteous

Aaron Smith ( Actor )

Writer

... 2021

Hammer

Chris Davis ( Actor )

... 2019

Marriage Story

Carter Mitchum ( Actor )

... 2019

Ready or Not

Alex Le Domas ( Actor )

... 2019

Goalie

Terry Sawchuk ( Actor )

Executive Producer

... 2019

State Like Sleep

Darren ( Actor )

... 2019

The Front Runner

Billy Shore ( Actor )

... 2018

Bad Times at the El Royale

Larsen Rogers ( Actor )

... 2018

Kin

Jake ( Actor )

... 2018

The Darkest Minds

Rob Meadows ( Actor )

... 2018

How It Ends

Jeremiah ( Actor )

... 2018

Anon

Cyrus Frear ( Actor )

... 2018

Parallel

Josh ( Actor )

... 2018

Arrival

Captain Marks ( Actor )

... 2016

The Dark Stranger

Mark ( Actor )

... 2016

... 2015

End of Days, Inc.

Jason ( Actor )

... 2015

Beat Down

Michael ( Actor )

... 2012

Grown Up Movie Star

Will ( Actor )

... 2009

The One That Got Away

Tommy Palchek ( Actor )

... 2008

The Four Horsemen

Eric Rollins ( Actor )

... 2008