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Mark O'Brien

Mark O'Brien

Acting Born: May 7, 1984 • 41 years old • St. Johns, Newfoundland, Canada

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).

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Also Known As

Mark O’Brien

Photos

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Known For

The Kelly Clarkson Show

The Kelly Clarkson Show

as Self

Nuremberg

Nuremberg

as Colonel John Amen

Warehouse 13

Warehouse 13

as Jerry Hoffler

Hannibal

Hannibal

as Randall Tier

Arrival

Arrival

as Captain Marks

Killjoys

Killjoys

as Grayson Hicks

Halt and Catch Fire

Halt and Catch Fire

as Tom Rendon

The Copenhagen Test

The Copenhagen Test

as Edmund Cobb

Your Honor

Your Honor

as Father Jay

Republic of Doyle

Republic of Doyle

as Des Courtney

Perry Mason

Perry Mason

as Thomas Milligan

Ready or Not

Ready or Not

as Alex Le Domas

City on a Hill

City on a Hill

as Jimmy Ryan

Marriage Story

Marriage Story

as Carter Mitchum

How It Ends

How It Ends

as Jeremiah

The Last Tycoon

The Last Tycoon

as Max Miner

61st Street

61st Street

as Officer Logan

The Sticky

The Sticky

as Charlie

The Darkest Minds

The Darkest Minds

as Rob Meadows

Anon

Anon

as Cyrus Frear