Hannah Onslow: Biography, Age, and Filmography

There’s something quietly impressive about an actress who moves from period dramas to Hollywood blockbusters without losing her footing. This article pieces together verified credits, training, and defining projects for Hannah Onslow, a 26-year-old English actress who appeared in Sam Mendes’ Empire of Light alongside Olivia Colman before landing a role in Indiana Jones and the Dial of Destiny.

Born: 1 April 1998 ·
Nationality: English ·
Known for: Empire of Light, Indiana Jones and the Dial of Destiny

Here are the confirmed biographical details for Hannah Onslow, drawn from public records and talent agency profiles.

Who is Hannah Onslow?

What is Hannah Onslow’s nationality?

• Hannah Lucy Onslow is an English actress, born in Romford, Greater London (Wikipedia (crowd-sourced encyclopedia)).
• She attended the BRIT School and reportedly graduated from RADA in 2019 with a BA in Acting (Wikipedia).

How old is Hannah Onslow?

• Born 1 April 1998, she is 26 as of 2024 (Wikipedia, IMDb (film database)).
• Rotten Tomatoes does not publish a birthday for her profile (Rotten Tomatoes (film review aggregator)).

The pattern here is consistent: Onslow’s biography is built from a handful of reliable sources, but specific details about her early life and family remain private. For a publicly visible performer, she keeps a low personal profile. Profiles of similar British actresses like Emily Fairn show a comparable mix of verified credits and private personal details.

Was Hannah Onslow in Call the Midwife?

What has Hannah Onslow been in?

• Yes, she made her television debut in a 2020 episode of BBC One’s Call the Midwife (Wikipedia (crowd-sourced encyclopedia)).
• She played Elise in the BBC drama Ridley Road (2021) and Erika van Hegen in This Is Going to Hurt (2022) (Wikipedia).
• In 2022 she portrayed Janine in Sam Mendes’ Empire of Light, appearing alongside Olivia Colman, Michael Ward, and Colin Firth (Anthea Represents (talent agency)).
• 2023 brought roles as Emma in Unicorns and a brief appearance in Indiana Jones and the Dial of Destiny (IMDb (film database), Anthea Represents).
• She had a recurring role as Elizabeth Siddal in Paramount+’s The Doll Factory (2023) (Wikipedia).
• In 2025 she played the female lead Diana in This City Is Ours and is listed for Jay Kelly (Anthea Represents, IMDb).

The implication: Onslow is building a career that spans both prestige indies and franchise films, a balance few actors achieve so early.

How tall is Hannah Onslow?

• Onslow’s height is not publicly confirmed in any reliable source. Wikipedia, IMDb, and her agency profile do not list a height.

For now, this remains an unanswered detail. The implication: personal physical attributes are not part of her public-facing brand, unlike some actors who include them on talent agency pages.

Career timeline

Onslow’s career progression follows a clear trajectory from television debuts to major film roles.

Three years, three genres. Onslow moved from BBC medical drama to a Sam Mendes period piece to an Indiana Jones sequel—each a deliberate step up in scale. For comparison, fellow British actress Michelle Keegan followed a similar arc from television to larger productions.

“I’m filming This City Is Ours at the moment and we finished work on Big Mood season two.”

— Hannah Onslow, Girls on Film interview, 2026 (YouTube (video platform))

“Hannah Onslow is a versatile actress who trained at RADA and has worked across theatre and screen.”

— Anthea Represents profile (Anthea Represents (talent agency))

For an actress with a relatively short public career, Onslow has already accumulated a varied filmography that spans BBC dramas, a Sam Mendes film, and a major franchise. The next few years will show whether she continues to alternate between independent features and studio projects.

Frequently asked questions