Mark O'Brien

Personal Info

Known For

Acting

Known Credits

54

Gender

Male

Birthday

1984-05-07 (41 years old)

Place of Birth

St. Johns, Newfoundland, Canada

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

  • The Kelly Clarkson Show

    The Kelly Clarkson Show

  • Nuremberg

    Nuremberg

  • Hannibal

    Hannibal

  • Warehouse 13

    Warehouse 13

  • Ready or Not

    Ready or Not

  • How to Plan an Orgy in a Small Town

    How to Plan an Orgy in a Small Town

  • Arrival

    Arrival

  • Killjoys

    Killjoys

  • Perry Mason

    Perry Mason

  • Halt and Catch Fire

    Halt and Catch Fire

  • Your Honor

    Your Honor

  • Republic of Doyle

    Republic of Doyle

  • Marriage Story

    Marriage Story

  • City on a Hill

    City on a Hill

  • Shadow of God

    Shadow of God

  • Topper

    Topper

  • The Copenhagen Test

    The Copenhagen Test

  • Seven Veils

    Seven Veils

  • The Darkest Minds

    The Darkest Minds

  • Kin

    Kin

  • The Sticky

    The Sticky

  • Bad Times at the El Royale

    Bad Times at the El Royale

  • Snarbuckled

    Snarbuckled

  • Blue Bayou

    Blue Bayou

  • Anon

    Anon

  • Brad

    Brad

  • Goalie

    Goalie

  • The Righteous

    The Righteous

  • 61st Street

    61st Street

  • Wanderer

    Wanderer

  • The Last Tycoon

    The Last Tycoon

  • Hammer

    Hammer

  • How It Ends

    How It Ends

  • The Front Runner

    The Front Runner

  • Parallel

    Parallel

  • Heartless Disappearance Into Labrador Seas

    Heartless Disappearance Into Labrador Seas

  • End of Days, Inc.

    End of Days, Inc.

  • Falsehood

    Falsehood

  • State Like Sleep

    State Like Sleep

  • Mum's the Word

    Mum's the Word

  • Grown Up Movie Star

    Grown Up Movie Star

  • The Voices of Our Mother

    The Voices of Our Mother

  • Cut from the Same Cloth

    Cut from the Same Cloth

  • The One That Got Away

    The One That Got Away

  • Epilogue

    Epilogue

  • The Dark Stranger

    The Dark Stranger

  • Quiet at Dawn

    Quiet at Dawn

  • The Four Horsemen

    The Four Horsemen

  • Dennis

    Dennis

  • The Outer Threat

    The Outer Threat

  • Nice People

    Nice People

  • Beat Down

    Beat Down

  • Better People

    Better People

  • Sweetieface

    Sweetieface