---
name: "Katherine Mallen Kupferer"
canonical: "https://film.one/person/katherine-mallen-kupferer"
fi1m_id: "katherine-mallen-kupferer"
imdb_id: "nm10102806"
tmdb_id: 4019845
wikidata_id: "Q126553507"
roles: ["Actor"]
born: "23 November 2007"
reviewed_on_fi1m: 1
average_as: "actor"
average_over: 1
updated: "2026-09-17T20:31:35.111812+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."
---

# Katherine Mallen Kupferer

## Identity

Katherine Mallen Kupferer

- **Canonical:** https://film.one/person/katherine-mallen-kupferer
- **Type:** Person
- **Fi1m ID:** katherine-mallen-kupferer
- **IMDb ID:** nm10102806
- **TMDB ID:** 4019845
- **Wikidata ID:** Q126553507
- **Same entity:** https://www.wikidata.org/wiki/Q126553507, https://www.imdb.com/name/nm10102806/, https://www.themoviedb.org/person/4019845

Actor. Born 23 November 2007 in Chicago, Illinois, USA.

## Details

- **Work:** Actor
- **Born:** 23 November 2007, Chicago, Illinois, USA
- **Elsewhere:** https://www.wikidata.org/wiki/Q126553507, https://www.imdb.com/name/nm10102806/, https://www.themoviedb.org/person/4019845

## Streaming the US now

- **Amazon Prime Video:** [*Are You There God? It's Me, Margaret.*](https://film.one/film/are-you-there-god-its-me-margaret.md) (75)

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

## Biography

Katherine Mallen Kupferer is an American actress born on 23 November 2007 in Chicago, Illinois. She is the daughter of actors Keith Kupferer and Tara Mallen. She began acting professionally at the age of five, making her stage debut in a Chicago Shakespeare Theater production of Gypsy.

Her film roles include Gun Daughter in Widows (2018) and Gretchen Potter in Are You There God? It's Me, Margaret. (2023). She appeared as Daisy in Ghostlight (2024), alongside her parents.

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

## On Fi1m (1)

- *Are You There God? It's Me, Margaret.* (2023), Fi1m 75, as Gretchen Potter — [page](https://film.one/film/are-you-there-god-its-me-margaret.md)

## Complete filmography (6)

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

- *Mouse* (2026), as Minnie Dunn
- *They Rescue Horses, Don’t They?* (2025), as Aubrey
- *Ghostlight* (2024), as Daisy
- *Are You There God? It's Me, Margaret.* (2023), as Gretchen Potter — Fi1m 75, [page](https://film.one/film/are-you-there-god-its-me-margaret.md)
- *Widows* (2018), as Gun Daughter — Fi1m 83, [page](https://film.one/film/widows.md)
- *Fools* (2016), as Vera’s daughter

---
© 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/katherine-mallen-kupferer