Acting
Mark O'Brien
1984-05-07 · 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).
Known for
Arrival
Marriage Story
Ready or Not
Bad Times at the El Royale
Hannibal
The Darkest Minds
How It Ends
Anon
Your Honor
Nuremberg
Kin
Warehouse 13
Halt and Catch Fire
Killjoys
Perry Mason
The Front Runner
Movie credits · 46
The Outer Threat
The Voices of Our Mother
Nuremberg
The Memory Keeper
Shadow of God
Seven Veils
Topper
Blue Bayou
The Righteous
Hammer
Marriage Story
Ready or Not
Goalie
State Like Sleep
The Front Runner
Bad Times at the El Royale
Kin
The Darkest Minds
How It Ends
Anon
Parallel
Arrival
Wanderer
The Dark Stranger
How to Plan an Orgy in a Small Town
End of Days, Inc.
Dennis
Sweetieface
Beat Down
Kathy
Snarbuckled
Brad
Grown Up Movie Star
Mum's the Word
Quiet at Dawn
Cut from the Same Cloth
Heartless Disappearance Into Labrador Seas
Epilogue
Pretty Girls
The One That Got Away
TV credits · 13
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