Mark O'Brien
Biography
Mark O'Brien is a Canadian actor and director born on May 7, 1984, in St. Johns, Newfoundland, Canada. He is known for his work in the entertainment industry, with a total of 58 known credits. O'Brien's acting career has spanned various roles, including Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire. He is a male actor who has been active in the industry, with a content score of 100. O'Brien's birthplace and age are also documented, with him being 42 years old as of his birthdate.
Career overview
Mark O'Brien is a Canadian actor. He has appeared in various acting roles throughout his career. One of his notable roles is Des Courtney in a television series titled Republic of Doyle. He has also played the role of Tom Rendon in another television series, Halt and Catch Fire.
As an actor, Mark O'Brien has accumulated a significant number of credits. He has appeared in a total of 58 acting roles, showcasing his versatility and range in different types of projects. His work in television series has allowed him to gain exposure and recognition in the industry.
Mark O'Brien was born on May 7, 1984, in St. Johns, Newfoundland, Canada. He is a male actor who has established himself as a talented performer in the entertainment industry. His career has spanned multiple projects, and he continues to be a notable figure in the acting world.
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Frequent co-stars
Career timeline
Full Filmography
81 titles- The Outer Threat (2026)
- The Voices of Our Mother (2026) as William
- The Voices of Our Mother (2026) Director
- The Voices of Our Mother (2026) Writer
- Nuremberg (2025) as Colonel John Amen
- The Copenhagen Test (2025) as Edmund Cobb
- The Memory Keeper (2025) as Elizeus Carrier
- Shadow of God (2025) as Mason Harper
- Seven Veils (2025) as Paul
- Topper (2025) as Topper
- The Sticky (2024) as Charlie
- 61st Street (2022) as Officer Logan
- Blue Bayou (2021) as Ace
- The Righteous (2021) as Aaron Smith
- The Righteous (2021) Director
- The Righteous (2021) Writer
- The Righteous (2021) Executive Producer
- Perry Mason (2020) as Thomas Milligan
- Your Honor (2020) as Father Jay
- The Kelly Clarkson Show (2019) as Self
- Ready or Not (2019) as Alex
- City on a Hill (2019) as Jimmy Ryan
- Marriage Story (2019) as Carter Mitchum
- State Like Sleep (2019) as Darren
- Goalie (2019) as Terry Sawchuk
- Goalie (2019) Executive Producer
- Hammer (2019) as Chris Davis
- Bad Times at the El Royale (2018) as Larsen Rogers
- The Darkest Minds (2018) as Rob Meadows
- How It Ends (2018) as Jeremiah
- Anon (2018) as Cyrus Frear
- Kin (2018) as Jake
- The Front Runner (2018) as Billy Shore
- Parallel (2018) as Josh
- The Last Tycoon (2017) as Max Miner
- Arrival (2016) as Captain Marks
- The Dark Stranger (2016) as Mark
- Wanderer (2016) as Eric
- Wanderer (2016) Director
- Wanderer (2016) Producer
- Killjoys (2015) as Grayson Hicks
- How to Plan an Orgy in a Small Town (2015) as Bruce Buck
- Dennis (2015) as Dennis
- Dennis (2015) Producer
- End of Days, Inc. (2015) as Jason
- Halt and Catch Fire (2014) as Tom Rendon
- Hannibal (2013) as Randall Tier
- Sweetieface (2013) as Sam
- Sweetieface (2013) Director
- Sweetieface (2013) Producer
- Sweetieface (2013) Editor
- Beat Down (2012) as Michael
- Kathy (2011) Director
- Republic of Doyle (2010) as Des Courtney
- Brad (2010) as Brad
- Brad (2010) Producer
- Brad (2010) Editor
- Grown Up Movie Star (2010) as Will
- Snarbuckled (2010) as Jacob O'Higgins
- Warehouse 13 (2009) as Jerry Hoffler
- Quiet at Dawn (2009) as Watts
- Mum's the Word (2009) as Curtis
- Cut from the Same Cloth (2009) as Jack Cochrane
- Pretty Girls (2008) Director
- Pretty Girls (2008) Writer
- Pretty Girls (2008) Editor
- Pretty Girls (2008) Cinematography
- The Four Horsemen (2008) as Eric Rollins
- Epilogue (2008) as Henry
- The One That Got Away (2008) as Tommy Palchek
- Heartless Disappearance Into Labrador Seas (2008) as Charlie
- Little One
- Better People as John
- Better People Director
- Better People Writer
- Better People Editor
- Good in the Room as Charlie
- Good in the Room Writer
- Good in the Room Executive Producer
- Nice People
- Nice People Director
Frequently Asked Questions
What movies or TV shows is Mark O'Brien best known for?
Mark O'Brien is widely recognized for notable roles and projects including The Outer Threat (2026), The Voices of Our Mother (2026), The Voices of Our Mother (2026), The Voices of Our Mother (2026).
When and where was Mark O'Brien born?
Mark O'Brien was born on May 7, 1984 in St. Johns, Newfoundland, Canada.
How many credits does Mark O'Brien have?
Mark O'Brien has accumulated over 81 film and television credits across a career spanning from 2008 to 2026.
What is Mark O'Brien's background in cinema and television?
Mark O'Brien is a Canadian actor and director born on May 7, 1984, in St. Johns, Newfoundland, Canada. He is known for his work in the entertainment industry, with a total of 58 known credits. O'Brien's acting career has spanned various roles, including Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch...