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Mark O'Brien

Known for: Acting

Biography: 1984-05-07 (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).

Filmography

all 53

Movies 40

TV Shows 13

Producer 4

Director 3

Mason Harper

Shadow of God (2025)

Movie

Paul

Seven Veils (2025)

Movie

Topper

Topper (2025)

Movie

Charlie

The Sticky (2024)

Officer Logan

61st Street (2022)

Ace

Blue Bayou (2021)

Movie

Aaron Smith / Writer / Director / Executive Producer

The Righteous (2021)

Movie

Father Jay

Your Honor (2020)

Thomas Milligan

Perry Mason (2020)

Chris Davis

Hammer (2019)

Movie

Carter Mitchum

Marriage Story (2019)

Movie

6.66

The Kelly Clarkson Show (2019)

9.67

Alex Le Domas

Ready or Not (2019)

Movie

7.26

Jimmy Ryan

City on a Hill (2019)

4.14

Terry Sawchuk / Executive Producer

Goalie (2019)

Movie

Darren

State Like Sleep (2019)

Movie

Billy Shore

The Front Runner (2018)

Movie

Larsen Rogers

Bad Times at the El Royale (2018)

Movie

6.23

Jake

Kin (2018)

Movie

7.5

Rob Meadows

The Darkest Minds (2018)

Movie

8.13

Jeremiah

How It Ends (2018)

Movie

4.5

Cyrus Frear

Anon (2018)

Movie

5.77

Josh

Parallel (2018)

Movie

Max Miner

The Last Tycoon (2017)

Captain Marks

Arrival (2016)

Movie

6.32

Director

Wanderer (2016)

Movie

Mark

The Dark Stranger (2016)

Movie

Bruce Buck

How to Plan an Orgy in a Small Town (2015)

Movie

Zach

Len and Company (2015)

Movie

Grayson Hicks

Killjoys (2015)

Jason

End of Days, Inc. (2015)

Movie

Dennis / Producer

Dennis (2015)

Movie

Tom Rendon

Halt and Catch Fire (2014)

4.71

Randall Tier

Hannibal (2013)

8.3

Michael

Beat Down (2012)

Movie

Director

Kathy (2011)

Movie

Jacob O'Higgins

Snarbuckled (2010)

Movie

Brad / Producer / Editor

Brad (2010)

Movie

Des Courtney

Republic of Doyle (2010)

Curtis

Mum's the Word (2009)

Movie

Will

Grown Up Movie Star (2009)

Movie

Watts

Quiet at Dawn (2009)

Movie

Jerry Hoffler

Warehouse 13 (2009)

5.65

Jack Cochrane

Cut from the Same Cloth (2009)

Movie

Charlie

Heartless Disappearance Into Labrador Seas (2008)

Movie

Henry

Epilogue (2008)

Movie

Tommy Palchek

The One That Got Away (2008)

Movie

Eric Rollins

The Four Horsemen (2008)

Movie

The Embers and the Stars

Movie

Cobb

The Copenhagen Test

William / Director / Writer

The Voices of Our Mother

Movie

Col. John Amen

Nuremberg

Movie

Elizeus Carrier

Falsehood

Movie

Gallery

Information

Known For

Acting

Gender

Male

Birthday

1984-05-07 (41 years old)

Birth Place

St. John's, Canada

Spouse

Georgina Reilly

Citizenships

Canada

Also Known As

Mark O’Brien

This article uses material from Wikipedia.

Last updated: 2025-05-20

Jay Hamel worked together with Mark O'Brien in:

8 Movies

Andrew Best worked together with Mark O'Brien in:

7 Movies

Jason Knight worked together with Mark O'Brien in:

5 Movies

1 TV Show

John Buchan worked together with Mark O'Brien in:

5 Movies

1 TV Show

Mayko Nguyen worked together with Mark O'Brien in:

3 Movies

2 TV Shows

Georgina Reilly worked together with Mark O'Brien in:

3 Movies

2 TV Shows

Andy Jones worked together with Mark O'Brien in:

4 Movies

1 TV Show

Jody Richardson worked together with Mark O'Brien in:

4 Movies

1 TV Show

Noel Harris worked together with Mark O'Brien in:

5 Movies

Mark O'Neill worked together with Mark O'Brien in:

5 Movies

Harvey Hyslop worked together with Mark O'Brien in:

5 Movies

Sean Doran worked together with Mark O'Brien in:

5 Movies

Steve Cook worked together with Mark O'Brien in:

5 Movies

Scott McClellan worked together with Mark O'Brien in:

5 Movies

Philip Cairns worked together with Mark O'Brien in:

4 Movies

John Papsidera worked together with Mark O'Brien in:

4 Movies

Joel Thomas Hynes worked together with Mark O'Brien in:

3 Movies

1 TV Show

Derek Holmes worked together with Mark O'Brien in:

4 Movies

Andy Pyne worked together with Mark O'Brien in:

4 Movies

Daphne Stockley worked together with Mark O'Brien in:

4 Movies

Mark O'Brien
Filmography
Information
Related Persons

Mark O'Brien

Biography

Filmography

all 53

Movies 40

TV Shows 13

Producer 4

Director 3

Shadow of God (2025)

Seven Veils (2025)

Topper (2025)

The Sticky (2024)

61st Street (2022)

Blue Bayou (2021)

The Righteous (2021)

Your Honor (2020)

Perry Mason (2020)

Hammer (2019)

Marriage Story (2019)

The Kelly Clarkson Show (2019)

Ready or Not (2019)

City on a Hill (2019)

Goalie (2019)

State Like Sleep (2019)

The Front Runner (2018)

Bad Times at the El Royale (2018)

Kin (2018)

The Darkest Minds (2018)

How It Ends (2018)

Anon (2018)

Parallel (2018)

The Last Tycoon (2017)

Arrival (2016)

Wanderer (2016)

The Dark Stranger (2016)

How to Plan an Orgy in a Small Town (2015)

Len and Company (2015)

Killjoys (2015)

End of Days, Inc. (2015)

Dennis (2015)

Halt and Catch Fire (2014)

Hannibal (2013)

Beat Down (2012)

Kathy (2011)

Snarbuckled (2010)

Brad (2010)

Republic of Doyle (2010)

Mum's the Word (2009)

Grown Up Movie Star (2009)

Quiet at Dawn (2009)

Warehouse 13 (2009)

Cut from the Same Cloth (2009)

Heartless Disappearance Into Labrador Seas (2008)

Epilogue (2008)

The One That Got Away (2008)

The Four Horsemen (2008)

The Embers and the Stars

The Copenhagen Test

The Voices of Our Mother

Nuremberg

Falsehood

Gallery

Information

Known For Acting

Gender Male

Birthday 1984-05-07 (41 years old)

Birth Place St. John's, Canada

Spouse Georgina Reilly

Citizenships Canada

Also Known As Mark O’Brien

Credited with

Known For

Acting

Gender

Male

Birthday

1984-05-07 (41 years old)

Birth Place

St. John's, Canada

Spouse

Georgina Reilly

Citizenships

Canada

Also Known As

Mark O’Brien