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Mark O'Brien (IX)


Mark O'Brien is an award-winning actor and filmmaker. He is an English major with a Bachelor of Arts from Memorial University of Newfoundland. His mother was a nurse and his father a truck driver. Mark also has three older sisters. He married actress Georgina Reilly on January 6, 2013 after meeting on the set of the hit show Republic of Doyle. See full bio »

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9 wins & 8 nominations. See more awards »

Known For

Halt and Catch Fire
Halt and Catch Fire Tom Rendon
(2015-2017)
The Last Tycoon
The Last Tycoon Max Miner
(2016-2017)
Arrival
Arrival Captain Marks
(2016)
Republic of Doyle
Republic of Doyle Des Courtney
(2010-2014)

Filmography

Hide Hide Show Show Actor (45 credits)
 2018/I Kin (post-production)
Jake
 2018 The Darkest Minds (post-production)
Rob Meadows
 2018/I Anon (post-production)
Cyrus Frear
 2018 City on a Hill (TV Series) (pre-production)
Jimmy Ryan
- Pilot (2018) ... Jimmy Ryan
 2018 How It Ends (post-production)
Jeremiah
 2018/II Parallel (post-production)
Josh
 2018 The Front Runner (post-production)
Billy Shore
 2015-2017 Halt and Catch Fire (TV Series)
Tom Rendon
- Nowhere Man (2017) ... Tom Rendon
- Miscellaneous (2017) ... Tom Rendon
- NeXT (2016) ... Tom Rendon
- You Are Not Safe (2016) ... Tom Rendon
- The Threshold (2016) ... Tom Rendon
 2016-2017 The Last Tycoon (TV Series)
Max Miner
- Oscar, Oscar, Oscar (2017) ... Max Miner
- An Enemy Among Us (2017) ... Max Miner
- A Brady-American Christmas (2017) ... Max Miner
- Burying the Boy Genius (2017) ... Max Miner
- A More Perfect Union (2017) ... Max Miner
 2016/II Arrival
Captain Marks
 2015 The Dark Stranger
Mark
 2015 Whitehorse (Short)
Evan
 2015/I Wanderer (Short)
Eric
 2015 Killjoys (TV Series)
Grayson Hicks
- Kiss Kiss, Bye Bye (2015) ... Grayson Hicks
 2015 Len and Company
Zach
 2015 End of Days, Inc.
Jason
 2015 Dennis (Short)
Dennis
 2010-2014 Republic of Doyle (TV Series)
Des Courtney
- Last Call (2014) ... Des Courtney
- Judgement Day (2014) ... Des Courtney
- Body of Evidence (2014) ... Des Courtney
- When the Whistle Blows (2014) ... Des Courtney
- The Pint (2014) ... Des Courtney
 2014 Saving Hope (TV Series)
Marshall Parker
- Awakenings (2014) ... Marshall Parker
 2014 Hannibal (TV Series)
Randall Tier
- Naka-Choko (2014) ... Randall Tier
- Shiizakana (2014) ... Randall Tier
 2013 Sweetieface (Short)
 2013 This Hour Has 22 Minutes (TV Series)
Des Courtney
- The 22 Minutes Holiday Special (2013) ... Des Courtney
 2012 Better People (Short)
John
 2012 Murdoch Mysteries (TV Series)
Jerome Bradley
- Murdoch Night in Canada (2012) ... Jerome Bradley
 2012 Diary of a Deadly P.I. (TV Series)
Des Courtney
- Chapter 11: Case Closed (2012) ... Des Courtney
- Chapter 10: Confronting the Suspect (2012) ... Des Courtney
- Chapter 9: What to Do to Unwind (2012) ... Des Courtney
- Chapter 8: The Art of Body Language (2012) ... Des Courtney
- Chapter 7: Updating the Client (2012) ... Des Courtney
 2012 Beat Down
Michael
 2011 Warehouse 13 (TV Series)
Jerry Hoffler
- Don't Hate the Player (2011) ... Jerry Hoffler
 2010 Snarbuckled (Short)
Jacob O'Higgins
 2010 Brad (Short)
Brad
 2009 Cut from the Same Cloth (Short)
Jack Cochrane
 2009 Mum's the Word (Short)
Curtis
 2009 Grown Up Movie Star
Will
 2009 Quiet at Dawn (Short)
Watts
 2008/I Epilogue (Short)
Henry
 2008 The One That Got Away (TV Movie)
Tommy Palchek
 2008 Patiently Wasting (Short)
Paul
 2006 Above and Beyond (TV Mini-Series)
Drake
- Part 2 (2006) ... Drake
- Part 1 ... Drake
 2006 You're It! (TV Series)
Mark / Various
- Episode #1.10 (2006) ... Mark / Various
- Episode #1.9 (2006) ... Mark / Various
- Episode #1.8 (2006) ... Mark / Various
- Episode #1.7 (2006) ... Mark / Various
- Episode #1.6 (2006) ... Mark / Various
 2005 Downward Calling (Short)
John Doe
Show Show Director (12 credits)
Show Show Writer (5 credits)
Show Show Editor (6 credits)
Show Show Producer (6 credits)
Show Show Cinematographer (2 credits)
Show Show Composer (1 credit)
Show Show Thanks (1 credit)
Show Show Self (3 credits)

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Personal Details

Other Works:

Formerly a journalist for the CBC News See more »

Height:

6' 2½" (1.89 m)
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Did You Know?

Star Sign:

Taurus

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'Black Panther' Star Winston Duke and Guillermo del Toro

Black Panther star Winston Duke takes us behind the scenes of Marvel's record-breaking movie, and Guillermo del Toro reminisces about Pan's Labyrinth's past Oscar success.

Watch the show