---
name: "Kate B. O'Brien"
canonical: "https://film.one/person/kate-b-obrien"
roles: ["Actor"]
reviewed_on_fi1m: 1
average_over: 1
updated: "2026-09-17T07:16:44.079656+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."
---

# Kate B. O'Brien

Actor.

## Details

- **Work:** Actor
- **Elsewhere:** https://www.themoviedb.org/person/1759618

## Streaming the US now

- **Apple TV:** [*The Fighter*](https://film.one/film/the-fighter.md) (79)

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

## Biography

Kate B. O'Brien is an American actor. Her credited film roles include Phyllis 'Beaver' Eklund in *The Fighter* (2010) and Diner Waitress in *Ted 2* (2015). She also appeared as Witness in one episode of the television series *The Expecting* (2020).

She is the sister of television talk show host Conan O'Brien and screenwriter Jane O'Brien, and a cousin of actor and comedian Denis Leary.

*Sources: imdb.com, vulture.com, screenrant.com.*

## On Fi1m (1)

- *The Fighter* (2010), Fi1m 79, as Phyllis "Beaver" Eklund — [page](https://film.one/film/the-fighter.md)

## Also known for

- *Ted 2* (2015), Diner Waitress

---
© 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/kate-b-obrien