NetflixMovies
Mark O'Brien

Biography

Mark O'Brien is a Canadian actor and director from St. John's. He is best known for playing Des Courtney in Republic of Doyle from 2010 to 2014 and Tom Rendon in Halt and Catch Fire from 2015 to 2016. His portrayal of Terry Sawchuk in the biographical drama Goalie (2019) brought him the Best Actor award at the 8th Canadian Screen Awards. He wrote and directed The Righteous (2021), and his work on it earned him two nominations at the 10th Canadian Screen Awards in 2022, for Best Supporting Actor and Best Original Screenplay. The film also won Best Screenplay at Montreal's Fantasia International Film Festival and at Manchester's Grimmfest, and took cinematography prizes at Grimmfest and Blood in the Snow Canadian Film Festival.

42years old

Turns 43 on May 7in 178 days

  • Born St. John's
  • Star sign: TaurusThe sign runs April 20 to May 20

Movie Career

Films
15
Career span
10 years2015 to 2025

Genres

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Mark O'Brien movies on Netflix

Best known for

The films on Netflix they are best known for, with the part played in each.

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  1. Arrival2016 Drama, Sci-Fias Captain Marks

    IMDb rating 7.9880K votes

  2. Ready or Not2019 Comedy, Horroras Alex

    IMDb rating 6.9266K votes

  3. Anon2018as Cyrus Frear

    IMDb rating 6.152K votes

  4. Nuremberg2025as Colonel John Amen

    IMDb rating 7.3119K votes

  5. How It Ends2018as Jeremiah

    IMDb rating 5.164K votes

  6. Bad Times at the El Royale2018as Larsen Rogers

    IMDb rating 7.1181K votes

  7. The Darkest Minds2018as Rob

    IMDb rating 5.741K votes

  8. Blue Bayou2021as Ace

    IMDb rating 7.112K votes

Most often with

Four actors appear in two of them each. Pick a number on the chart or a name in the list to see the films they share.

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Films together

Box office

What Mark O'Brien's films earned in cinemas worldwide.

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Combined worldwide box office

$376 million

8 of the 15 films have a worldwide figure.

Of the 15 films: 8 worldwide figure; 1 us gross only; 3 never in cinemas; 3 figure not found.

  • 8Worldwide figure
  • 1US gross only
  • 3Never in cinemas
  • 3Figure not found

Highest grossing

The eight biggest films earned 100% of the total. The bars are drawn to scale.

  1. 1
    Arrival2016as Captain Marks
    $203M54.1% of the total
  2. 2
    Ready or Not2019as Alex
    $58M15.3% of the total
  3. 3
    $41M10.9% of the total
  4. 4
    Nuremberg2025as Colonel John Amen
    $37M9.8% of the total
  5. 5
    Bad Times at the El Royale2018as Larsen Rogers
    $32M8.5% of the total
  6. 6
    The Front Runner2018as Billy Shore
    $3.3M0.9% of the total
  7. 7
    Anon2018as Cyrus Frear
    $1.2M0.3% of the total
  8. 8
    Blue Bayou2021as Ace
    $750K0.2% of the total