Mark O'Brien

Mark O'Brien

39 · Born: May 7, 1984

Known For

Ready or Not Ready or Not
Arrival Arrival
City on a Hill City on a Hill
Halt and Catch Fire Halt and Catch Fire

Personal Details

Official Socials
Born May 7, 1984 St. John's, Canada
Relatives
  • Sibling (Sibling)

Biography

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.

Career

2023
Seven Veils
Seven Veils
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Perry Mason
Perry Mason as Thomas Milligan
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2022
61st Street
61st Street as Officer Logan
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2021
Blue Bayou
Blue Bayou as Ace
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The Righteous
The Righteous as Aaron Smith
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2019
Goalie
Goalie as Terry Sawchuk
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Ready or Not
Ready or Not as Alex Le Domas
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Hammer
Hammer as Chris Davis
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State Like Sleep
State Like Sleep as Darren
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City on a Hill
City on a Hill as Jimmy Ryan
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2018
The Darkest Minds
The Darkest Minds as Rob Meadows
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Anon
Anon as Cyrus Frear
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How It Ends
How It Ends as Jeremiah
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Parallel
Parallel as Josh
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The Front Runner
The Front Runner as Billy Shore
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2017
The Last Tycoon
The Last Tycoon as Max Miner
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2016
Arrival
Arrival as Captain Marks
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The Dark Stranger
The Dark Stranger as Mark
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2015
End of Days, Inc.
End of Days, Inc. as Jason
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How to Plan an Orgy in a Small Town
How to Plan an Orgy in a Small Town as Bruce Buck
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Len and Company
Len and Company as Zach
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Killjoys
Killjoys as Grayson Hicks
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Halt and Catch Fire
Halt and Catch Fire as Tom Rendon
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2012
Beat Down
Beat Down as Michael
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2010
Snarbuckled
Snarbuckled as Jacob O'Higgins
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Republic of Doyle
Republic of Doyle as Des Courtney
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2009
Grown Up Movie Star
Grown Up Movie Star as Will
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2008
The Four Horsemen
The Four Horsemen as Eric Rollins
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Heartless Disappearance Into Labrador Seas
Heartless Disappearance Into Labrador Seas as Charlie
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2021
The Righteous
The Righteous as Director, Writer
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