---
name: "Casper Knopf"
canonical: "https://film.one/person/casper-knopf"
roles: ["Actor"]
reviewed_on_fi1m: 1
updated: "2026-09-16T21:14:13.144221+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."
---

# Casper Knopf

Actor. Born in Bushey, UK.

## Details

- **Work:** Actor

## Biography

Casper Knopf is a UK-based actor. He played Billy Darcy in the film *Bridget Jones: Mad About the Boy* (2025). His other screen credits include the role of Young John in the television series *Halo* (2022), Tommy McCabe in *Rough Diamonds* (2023), and 9 Years Old Archie in *How to Date Billy Walsh* (2024).

Knopf appeared in *Silent Witness* (2024) as Young Lee Dunn and made his stage debut in a 2023 production of *Macbeth* at the Donmar Warehouse, playing Macduff's Son, Fleance and Young Siward; the production transferred to the West End in 2025.

*Sources: imdb.com, mynewsmag.co.uk.*

## On Fi1m (1)

- *Bridget Jones: Mad About the Boy* (2025), Fi1m 70, as Billy Darcy — [page](https://film.one/film/bridget-jones-mad-about-the-boy.md)

## Also known for

- *Halo* (2022), Young John
- *How to Date Billy Walsh* (2024), 9 Years Old Archie
- *Rough Diamonds* (2023), Tommy McCabe

---
© 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/casper-knopf