---
name: "Roisin O'Neill"
canonical: "https://film.one/person/roisin-oneill"
fi1m_id: "roisin-oneill"
tmdb_id: 1957056
roles: []
reviewed_on_fi1m: 2
average_fi1m_score: 70
average_over: 2
updated: "2026-10-03T01:11:42.433565+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."
---

# Roisin O'Neill

## Identity

Roisin O'Neill

- **Canonical:** https://film.one/person/roisin-oneill
- **Type:** Person
- **Fi1m ID:** roisin-oneill
- **TMDB ID:** 1957056
- **Same entity:** https://www.themoviedb.org/person/1957056

Actor.

## Details

- **Active:** 2017–present
- **Fi1m score by decade:** 2010s 66 (1), 2020s 74 (1)
- **Elsewhere:** https://www.themoviedb.org/person/1957056

## Streaming the US now

- **Amazon Prime Video:** [*Calm with Horses*](https://film.one/film/calm-with-horses.md) (74)

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

## Biography

Róisín O'Neill is an Irish actress. She played Fatima in the 2019 film *Calm with Horses* and appeared as Agnes Dillon in *Darkest Hour* (2017).

Her television credits include Mrs Dolan in *Victoria* (2019) and Caitlin O'Casey in *Father Brown* (2018). She has also appeared in *The Drowning* (2021) and *Der Irland-Krimi* (2021).

On stage, O'Neill has performed at the National Theatre in *The Plough and the Stars* and at the Abbey Theatre in *Sive*.

*Sources: imdb.com, lisarichardsagency.com, lezwatchtv.com.*

## On Fi1m (2)

- *Calm with Horses* (2020), Fi1m 74, as Fatima — [page](https://film.one/film/calm-with-horses.md)
- *Darkest Hour* (2017), Fi1m 66, as Agnes Dillon — [page](https://film.one/film/darkest-hour.md)

## Complete filmography (7)

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

- *Screamer* (2024), Actor
- *The Drowning* (2021), series, as Miss Towne
- *Calm with Horses* (2020), as Fatima — Fi1m 74, [page](https://film.one/film/calm-with-horses.md)
- *Darkest Hour* (2017), as Agnes Dillon — Fi1m 66, [page](https://film.one/film/darkest-hour.md)
- *Victoria* (2016), series, as Mrs. Dolan
- *Just, Leonard* (2014), as Michelle
- *Father Brown* (2013), series, as Caitlin O'Casey

---
© 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/roisin-oneill