Mark O'Brien
#20,303 Most Popular
About
Canadian actor who has won acclaim for television roles like Des Courtney on Republic of Doyle and Tom Rendon on Halt and Catch Fire. He played Colonel John Amen in the 2025 movie Nuremberg.
Before Fame
He earned a Bachelor of Arts from Memorial University of Newfoundland.
Trivia
He was nominated for Canadian Comedy Awards for his performance on Republic of Doyle in 2011 and 2014. He has amassed more than 30,000 followers on Instagram.
Family Life
He married actress Georgina Reilly in 2013. He has three older sisters.
Associated With
He has co-starred with Lee Pace on AMC's Halt and Catch Fire.
