---
title: 'Mark O''Brien'
type: 'person'
roles:
  - 'film actor'
  - 'television actor'
  - 'film producer'
  - 'film director'
  - 'stage actor'
born: '1984-05-07'
birthplace: 'St. John''s'
films_in_library: 10
reviews_of_their_work: 0
canonical: 'https://cinepixo.com/people/mark-o-brien'
updated: '2026-08-01'
wikipedia: 'https://en.wikipedia.org/wiki/Mark_O%27Brien_(actor)'
wikidata: 'Q15867224'
publisher: 'CinePixo'
---

# Mark O'Brien

film actor, television actor, film producer, film director, stage actor.

## Filmography on CinePixo

- 2025 · [Nuremberg](https://cinepixo.com/movies/nuremberg-2025) — as John Amen · unreviewed here
- 2023 · [Seven Veils](https://cinepixo.com/movies/seven-veils-2023) — actor · unreviewed here
- 2021 · [Blue Bayou](https://cinepixo.com/movies/blue-bayou-2021) — actor · unreviewed here
- 2019 · [Marriage Story](https://cinepixo.com/movies/marriage-story-2019) — as Carter Mitchum · unreviewed here
- 2019 · [Ready or Not](https://cinepixo.com/movies/ready-or-not-2019) — actor · unreviewed here
- 2018 · [How It Ends](https://cinepixo.com/movies/how-it-ends-2018) — actor · unreviewed here
- 2018 · [The Darkest Minds](https://cinepixo.com/movies/the-darkest-minds-2018) — actor · unreviewed here
- 2018 · [Anon](https://cinepixo.com/movies/anon-2018) — actor · unreviewed here
- 2018 · [State Like Sleep](https://cinepixo.com/movies/state-like-sleep-2018) — actor · unreviewed here
- 2016 · [Arrival](https://cinepixo.com/movies/arrival-2016) — as Captain Marks · unreviewed here

## Criticism on CinePixo

Nothing written about their work here yet.

Source: https://cinepixo.com/people/mark-o-brien
Biographical facts from Wikipedia/Wikidata where linked above. Ratings and reviews are the work of this site's members.