---
name: "Niamh Moriarty"
canonical: "https://film.one/person/niamh-moriarty"
fi1m_id: "niamh-moriarty"
tmdb_id: 3859117
roles: ["Actor"]
reviewed_on_fi1m: 2
average_fi1m_score: 70
average_as: "actor"
average_over: 2
updated: "2026-10-07T19:55:59.712293+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."
---

# Niamh Moriarty

## Identity

Niamh Moriarty

- **Canonical:** https://film.one/person/niamh-moriarty
- **Type:** Person
- **Fi1m ID:** niamh-moriarty
- **TMDB ID:** 3859117
- **Same entity:** https://www.themoviedb.org/person/3859117

Actor. Born in Dublin, Ireland.

## Details

- **Work:** Actor
- **Active:** 2023–present
- **Average Fi1m score:** 70, as actor, over 2 titles
- **Elsewhere:** https://www.themoviedb.org/person/3859117

## Streaming the US now

- **Amazon Prime Video:** [*Best Interests*](https://film.one/tv/best-interests.md) (76)

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

## Biography

Niamh Moriarty is an Irish actor from Dublin. She began working in the industry at the age of 11 and has appeared on stage and screen.

Her television credits include the role of Marnie in the BBC series *Best Interests* (2023) and Fiadh in the RTÉ series *Showkids* (2025). Film roles include Daisy in *Silver and the Book of Dreams* (2023) and Jennifer in *September Says* (2024). On stage she has played Tiny Tim in Jack Thorne's *A Christmas Carol* at the Gate Theatre and appeared in a National Theatre workshop of *My Left Foot*.

Moriarty was named one of Screen International's Stars of Tomorrow in 2024.

*Sources: imdb.com.*

## On Fi1m (2)

- *September Says* (2025), Fi1m 63, as Jennifer — [page](https://film.one/film/september-says.md)
- *Best Interests* (2023), Fi1m 76, as Marnie — [page](https://film.one/tv/best-interests.md)

## Complete filmography (4)

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

- *Showkids* (2025), series, as Fiadh
- *September Says* (2025), as Jennifer — Fi1m 63, [page](https://film.one/film/september-says.md)
- *Silver and the Book of Dreams* (2023), as Daisy Dawn Steward
- *Best Interests* (2023), series, as Marnie — Fi1m 76, [page](https://film.one/tv/best-interests.md)

---
© 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/niamh-moriarty