Beau Gadsdon

Beau Gadsdon (born 17 January 2007) is a British television and film actress.

Career As a child actress, she appeared in Rogue One: A Star Wars Story as a young Jyn Erso. She played mini-Harry in the 2017 music video for Harry Styles song Kiwi. She played a young Lisbeth Salander in the 2018 film The Girl in the Spider's Web.

She played Polly Ingram, the daughter of Matthew Macfadyen's Major Charles Ingram in true-life television crime drama Quiz in 2020. She also appeared in the horror film Censor, playing the younger version of Enid, played by Niamh Algar. She appeared in Katherine Ryan comedy series The Duchess for Netflix, and the comedy series The Baby.

In 2021, she played a young Antonia Minor on historical television series Domina. In 2022, she could be seen in Netflix spy thriller Treason. That year, she had the lead role of Lily Watts in The Railway Children Return, a film which also starred Jenny Agutter, and was a sequel to the 1970 film The Railway Children.

In 2023, Gadsdon appeared in series six of The Crown in flashback scenes set on Victory in Europe Day playing a teenage Princess Margaret alongside Viola Prettejohn as the teenage Princess Elizabeth. She had first played the role in series one in 2016.

In 2024, she appeared in the television adaptation of A Gentleman in Moscow starring Ewan McGregor.

Personal life She has two younger sisters, one older brother, and two older half-sisters. Her younger sisters, Dolly Gadsdon and Billie Gadsdon have followed her into the world of acting.

Filmography Film Year Title Role Notes 2016 Rogue One Young Jyn Erso 2017 Salt Micah Short film 2018 The Girl in the Spider's Web Young Lisbeth Salander 2021 Censor Young Enid 2022 The Railway Children Return Lily Watts Lead role 2023 The Critic Freya 2024 Here Young Elizabeth (12–15 years) 2025 The Conjuring: Last Rites Dawn Smurl 2026 The Nomophobe Madison Ashley-Cooper Short film. Post-production The Scurry Jordan Completed The Night House Karen Post-production

Television Year Title Role Notes 2016–2023 The Crown Young Princess Margaret Recurring role; 5 episodes 2018 Genius Young Francoise Episode: "Picasso: Chapter Five" 2020 Quiz Polly Portia Ingram Mini-series; 2 episodes The Duchess Millie 3 episodes 2021 Domina Young Antonia Minor 4 episodes The Baby Sally 2 episodes: "The Mother" and "The Rage" 2022 Treason Ella Lawrence Mini-series; 5 episodes 2024 A Gentleman in Moscow Sofia (Adult) Mini-series; 3 episodes Ellis Amy Mercer Episode: "Hanmore" 2025–2026 A Taste for Murder Angelica Mottram 6 episodes