Mark O'Brien biography

Mark O'Brien

Date of Birth: May 7, 1984

Born in St. John's, Newfoundland, Mark O'Brien is best known for his role as Des Courtney on the hit TV series Republic of Doyle, which ran from 2010 to 2014.

More recently, he played Cyrus Frear in the Netflix original film Anon (2018), shot in Toronto and starring Amanda Seyfried and Clive Owen.

Mark is married to actress Georgina Reilly, who played Dr. Emily Grace on Murdoch Mysteries from 2012 to 2017.


Mark O'Brien Photo