Mark O'Brien

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).

Cast

Seven Veils

Paul

The Four Horsemen

Eric Rollins

Grown Up Movie Star

Will

Cut from the Same Cloth

Jack Cochrane

Heartless Disappearance Into Labrador Seas

Charlie

Shadow of God

Mason Harper

Snarbuckled

Jacob O'Higgins

The Dark Stranger

Mark

Nuremberg

Colonel John Amen

End of Days, Inc.

Jason

The Voices of Our Mother

William

Beat Down

Michael

Arrival

Captain Marks

Anon

Cyrus Frear

State Like Sleep

Darren

Kin

Jake

Parallel

Josh

The Darkest Minds

Rob Meadows

How to Plan an Orgy in a Small Town

Bruce Buck

Bad Times at the El Royale

Larsen Rogers

Marriage Story

Carter Mitchum

The Front Runner

Billy Shore

How It Ends

Jeremiah

Goalie

Terry Sawchuk

Hammer

Chris Davis

Ready or Not

Alex Le Domas

Blue Bayou

Ace

The Righteous

Aaron Smith

Mum's the Word

Curtis

Epilogue

Henry

Brad

Brad

The Outer Threat

Unknown

Dennis

Dennis

Falsehood

Elizeus Carrier

Quiet at Dawn

Watts

Topper

Topper

The One That Got Away

Tommy Palchek

Better People

John

Sweetieface

Sam

Wanderer

Eric

Nice People

Unknown

Crew

The Righteous

Director, Writer, Executive Producer

Wanderer

Director, Producer

The Voices of Our Mother

Director, Writer

Goalie

Executive Producer

Kathy

Director

Brad

Producer, Editor

Dennis

Producer

Better People

Director, Writer, Editor

Sweetieface

Director, Producer, Editor

Pretty Girls

Director, Writer, Editor, Cinematography

Nice People

Director