Mark O'Brien



Place of birth:

Canada :


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.

Film Credits

Marriage Story (2019)
as Carter Mitchum
Ready or Not (2019)
as Alex Le Domas
Goalie (2019)
as Terry Sawchuk
State Like Sleep (2019)
as Darren
The Front Runner (2018)
as Billy Shore
Bad Times at the El Royale (2018)
as Larsen Rogers
Kin (2018)
as Jake
The Darkest Minds (2018)
as Rob Meadows
How It Ends (2018)
as Jeremiah
Anon (2018)
as Cyrus Frear
Parallel (2018)
as Josh
Arrival (2016)
as Captain Marks
The Dark Stranger (2016)
as Mark
How to Plan an Orgy in a Small Town (2015)
as Bruce Buck
End of Days, Inc. (2015)
as Jason
Beat Down (2012)
as Father Tyrone
Beat Down (2012)
as Michael
Grown Up Movie Star (2009)
as Will
The Four Horsemen (2008)
as Eric Rollins
Let The Games Begin: The Making Of Ready Or Not ()
as Mark O'Brien

Production Credits

Goalie (2019)
Executive Producer
Wanderer (2016)