Mark O'Brien

Biography

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

as Captain Marks

Marriage Story

as Carter Mitchum

Ready or Not

as Alex Le Domas

Bad Times at the El Royale

as Larsen Rogers

The Darkest Minds

as Rob Meadows

Hannibal

as Randall Tier

How It Ends

as Jeremiah

Anon

as Cyrus Frear

Your Honor

as Father Jay

Kin

as Jake