---
name: "Kieran O'Brien"
canonical: "https://film.one/person/kieran-obrien"
fi1m_id: "kieran-obrien"
imdb_id: "nm0639659"
tmdb_id: 176
wikidata_id: "Q718193"
roles: ["Actor"]
born: "23 November 1973"
reviewed_on_fi1m: 6
average_fi1m_score: 70
average_as: "actor"
average_over: 6
updated: "2026-10-07T16:58:19.476450+00:00"
licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL."
---

# Kieran O'Brien

## Identity

Kieran O'Brien

- **Canonical:** https://film.one/person/kieran-obrien
- **Type:** Person
- **Fi1m ID:** kieran-obrien
- **IMDb ID:** nm0639659
- **TMDB ID:** 176
- **Wikidata ID:** Q718193
- **Same entity:** https://en.wikipedia.org/wiki/Kieran_O%27Brien, https://www.wikidata.org/wiki/Q718193, https://www.imdb.com/name/nm0639659/, https://www.themoviedb.org/person/176

Actor. Born 23 November 1973 in Oldham, Lancashire, England.

## Details

- **Work:** Actor
- **Born:** 23 November 1973, Oldham, Lancashire, England
- **Active:** 1993–present
- **Also known as:** Keiran O'Brien
- **Average Fi1m score:** 70, as actor, over 6 titles
- **Fi1m score by decade:** 1990s 85 (1), 2010s 56 (3), 2020s 83 (2)
- **Fi1m against the critics:** 63 to 63 across 3 titles
- **Score spread:** 3 at 80+, 2 at 60–79, 1 under 60
- **Lead roles:** 0 of 3 acting credits billed first or second
- **Genres:** Drama 4, Crime 3, Action & Adventure 1, Comedy 1, Mystery 1, Sci-Fi & Fantasy 1
- **Screen time:** 2 hours of reviewed films
- **Box office:** $41m across 1 films with figures
- **Elsewhere:** https://en.wikipedia.org/wiki/Kieran_O%27Brien, https://www.wikidata.org/wiki/Q718193, https://www.imdb.com/name/nm0639659/, https://www.themoviedb.org/person/176

## Streaming the US now

- **Apple TV:** [*Cracker*](https://film.one/tv/cracker.md) (85), [*Prey*](https://film.one/tv/prey-2014.md) (74)
- **Netflix:** [*Holmes & Watson*](https://film.one/film/holmes-and-watson.md) (24)

For United States; add `?region=XX` for another country.

## Biography

Kieran O'Brien is an English actor. Born on 23 November 1973 in Oldham, Lancashire, he began acting as a child and was the star of the BBC series *Gruey* by the age of 15. He appeared in two roles in *Coronation Street* and had a recurring part in *Children's Ward* before becoming a regular cast member in the detective series *Cracker* (1993–1995) as Mark Fitzgerald, the son of the central character; he reprised the role in the 2006 special *Cracker: Nine Eleven*.

O'Brien made his feature film debut in *Virtual Sexuality* (1999). His other screen credits include *Band of Brothers* (2001) as Allen E. Vest, *24 Hour Party People* (2002) as Nathan, *9 Songs* (2004) as Matt, the *Goal!* films (2005, 2007) as Hughie McGowan, *HolbyBlue* (2007–2008) as PC Robert Clifton, *Years and Years* (2019), *Ted Lasso* (2020) as James Tartt, and *Andor* (2022) as Pegla.

*Sources: en.wikipedia.org, imdb.com.*

## On Fi1m (6)

- *A Thousand Blows* (2025), Fi1m 80, as Mr Harkness — [page](https://film.one/tv/a-thousand-blows.md)
- *Andor* (2022), Fi1m 86, as Pegla — [page](https://film.one/tv/andor.md)
- *Holmes & Watson* (2018), Fi1m 24, as Lestrade's PC Smalls — [page](https://film.one/film/holmes-and-watson.md)
- *Prey* (2014), Fi1m 74, as Phil Prentice — [page](https://film.one/tv/prey-2014.md)
- *Silk* (2011), Fi1m 71, as Sean — [page](https://film.one/tv/silk.md)
- *Cracker* (1993), Fi1m 85, as Mark, Mark Fitzgerald — [page](https://film.one/tv/cracker.md)

## Complete filmography (59)

Every credit, newest first. Titles without a page can be requested for review on the HTML page.

- *Trucking Heavy: Massive Moves* (2025), series, as Narrator
- *A Thousand Blows* (2025), series, as Mr Harkness — Fi1m 80, [page](https://film.one/tv/a-thousand-blows.md)
- *The Family Pile* (2023), series, as Stuart
- *Andor* (2022), series, as Pegla — Fi1m 86, [page](https://film.one/tv/andor.md)
- *The Following Year* (2021), as Ben
- *She* (2020), Executive Producer
- *Ted Lasso* (2020), series, as James Tartt — Fi1m 78, [page](https://film.one/tv/ted-lasso.md)
- *Years and Years* (2019), series, as Woody — Fi1m 79, [page](https://film.one/tv/years-and-years.md)
- *Chernobyl* (2019), series, as Khodemchuck — Fi1m 86, [page](https://film.one/tv/chernobyl.md)
- *Holmes & Watson* (2018), as Lestrade's PC Smalls — Fi1m 24, [page](https://film.one/film/holmes-and-watson.md)
- *Peterloo* (2018), as Peter Wilkes, a Farrier
- *The Watchman* (2016), as Lee Simpson
- *No Offence* (2015), series, as Stone — Fi1m 73, [page](https://film.one/tv/no-offence.md)
- *Grantchester* (2014), series, as Arthur Evans
- *Glue* (2014), series, as Thomas Bray
- *Prey* (2014), series, as Phil Prentice — Fi1m 74, [page](https://film.one/tv/prey-2014.md)
- *The Look of Love* (2013), as Jimmy Humphries
- *Bluestone 42* (2013), series, as Nutsack
- *Spike Island* (2012), as Poster Vendor
- *Cuckoo* (2012), series, as Goran
- *Heroes and Demons* (2012), as (segment "The Banker")
- *Love Life* (2012), series, as Dez
- *Death in Paradise* (2011), series, as Danny
- *Vera* (2011), series, as Bobby Salter — Fi1m 72, [page](https://film.one/tv/vera.md)
- *Silk* (2011), series, as Sean — Fi1m 71, [page](https://film.one/tv/silk.md)
- *The Shock Doctrine* (2009), as Narrator (Voice)
- *Moving On* (2009), series, as Shane
- *The Last Enemy* (2008), series, as Wafa
- *Secret Diary of a Call Girl* (2007), series, as Al
- *Holby Blue* (2007), series, as Constable Robert Clifton
- *Goal II: Living the Dream* (2007), as Hughie McGowan
- *Cracker: Nine Eleven* (2006), as Mark Fitzgerald
- *Elizabeth David: A Life in Recipes* (2006), as Charles Gibson Cowan
- *Life on Mars* (2006), series, as Davie Mackay — Fi1m 84, [page](https://film.one/tv/life-on-mars.md)
- *Goal!* (2005), as Hughie McGowan
- *A Cock and Bull Story* (2005), as Gary
- *Bloodlines* (2005), series, as Mark Hopkin
- *The Banker* (2004), as Vain Man
- *9 Songs* (2004), as Matt
- *New Tricks* (2004), series, as Michael Jacobs
- *Blue Murder* (2003), series, as Terry Camerton
- *Burn It* (2003), series, as Andy Grimshaw
- *The Afternoon Play* (2003), series, as Sean Tyler
- *24 Hour Party People* (2002), as Nathan
- *Band of Brothers* (2001), series, as Allen E. Vest — Fi1m 89, [page](https://film.one/tv/band-of-brothers.md)
- *Messiah* (2001), series, as Eric Metcalfe
- *Jason and the Argonauts* (2000), series, as Actor
- *Virtual Sexuality* (1999), as Alex Thorne
- *Born to Run* (1997), series, as Ryan Flitch
- *Dalziel and Pascoe* (1996), series, as Chris Mattis
- *Cracker* (1993), series, as Mark Fitzgerald, Mark — Fi1m 85, [page](https://film.one/tv/cracker.md)
- *Heartbeat* (1992), series, as Neil
- *The Jim Henson Hour* (1989), series, as Matt Banting
- *Children's Ward* (1989), series, as Lee Jones
- *Monster Maker* (1989), as Matt Banting
- *Gruey* (1988), series, as Gruey
- *Bellman and True* (1987), as The Boy
- *Casualty* (1986), series, as Chris Miller, Billy — Fi1m 68, [page](https://film.one/tv/casualty.md)
- *Dramarama* (1983), series, as Trotter

---
© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Canonical: https://film.one/person/kieran-obrien