Mark O'Brien

Mark O'Brien Acting

07 May, 1984 (42) in St. Johns, Newfoundland, Canada

Mark O'Brien Acting

07 May, 1984 (42) in 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).

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).

The Voices of Our Mother

Acting (William) · Director · Writer

05/06/2026

Nuremberg

Acting (Colonel John Amen)

06/11/2025

The Memory Keeper

Acting (Elizeus Carrier)

26/10/2025

Shadow of God

Acting (Mason Harper)

26/03/2025

Seven Veils

Acting (Paul)

07/03/2025

Topper

Acting (Topper)

04/03/2025

Blue Bayou

Acting (Ace)

10/09/2021

The Righteous

Acting (Aaron Smith) · Executive Producer · Director · Writer

15/08/2021

Hammer

Acting (Chris Davis)

05/12/2019

Marriage Story

Acting (Carter Mitchum)

28/09/2019

Ready or Not

Acting (Alex)

21/08/2019

Goalie

Acting (Terry Sawchuk) · Executive Producer

01/03/2019

State Like Sleep

Acting (Darren)

04/01/2019

The Front Runner

Acting (Billy Shore)

06/11/2018

Bad Times at the El Royale

Acting (Larsen Rogers)

04/10/2018

Kin

Acting (Jake)

29/08/2018

The Darkest Minds

Acting (Rob Meadows)

25/07/2018

How It Ends

Acting (Jeremiah)

13/07/2018

Anon

Acting (Cyrus Frear)

03/05/2018

Parallel

Acting (Josh)

10/04/2018

Arrival

Acting (Captain Marks)

10/11/2016

Wanderer

Acting (Eric) · Director · Producer

04/10/2016

The Dark Stranger

Acting (Mark)

15/07/2016

How to Plan an Orgy in a Small Town

Acting (Bruce Buck)

19/09/2015

End of Days, Inc.

Acting (Jason)

24/04/2015

Dennis

Acting (Dennis) · Producer

18/04/2015

Sweetieface

Acting (Sam) · Director · Producer · Editor

01/01/2013

Beat Down

Acting (Michael)

03/08/2012

Kathy

Director

17/09/2011

Snarbuckled

Acting (Jacob O'Higgins)

18/09/2010

Brad

Acting (Brad) · Producer · Editor

24/07/2010

Grown Up Movie Star

Acting (Will)

29/01/2010

Mum's the Word

Acting (Curtis)

23/10/2009

Quiet at Dawn

Acting (Watts)

01/09/2009

Cut from the Same Cloth

Acting (Jack Cochrane)

01/01/2009

Heartless Disappearance Into Labrador Seas

Acting (Charlie)

09/09/2008

Epilogue

Acting (Henry)

27/06/2008

Pretty Girls

Director · Writer · Editor · Cinematography

25/06/2008

The One That Got Away

Acting (Tommy Palchek)

20/04/2008

The Four Horsemen

Acting (Eric Rollins)

18/03/2008

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