Mark O'Brien

Mark O'Brien

Acting
Birthday

May 07, 1984

41 years old

Born In

St. Johns, Newfoundland, Canada

Known For

4

Movies

View on IMDb

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).

Acting (4 credits)

Nuremberg
7.2

Nuremberg

as Colonel John Amen

2025

The Righteous
6.2

The Righteous

as Aaron Smith

2021

Marriage Story
7.7

Marriage Story

as Carter Mitchum

2019

Arrival
7.6

Arrival

as Captain Marks

2016

Writing (1 credits)

The Righteous
6.2

The Righteous

Writer

2021

Directing (1 credits)

The Righteous
6.2

The Righteous

Director

2021

Production (1 credits)

The Righteous
6.2

The Righteous

Executive Producer

2021

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