
Acting
Thomasin Harcourt McKenzie (born 26 July 2000) is an actress from New Zealand. After a minor role in The Hobbit: The Battle of Five Armies, she rose to critical prominece with the lead role in Debra Granik's…
Thomasin Harcourt McKenzie was born July 26, 2000, in Wellington, New Zealand, into acting royalty — the daughter of actress and acting coach Dame Miranda Harcourt and director Stuart McKenzie, and the granddaughter of actress Dame Kate Harcourt. Her great-grandfamily founded Harcourts International, one of New Zealand's biggest real-estate companies. As a child, though, she wanted nothing to do with the family trade: she planned to become a veterinarian or a zookeeper and work with animals. The sets found her anyway. While still a pupil at Samuel Marsden Collegiate School in Wellington's Karori suburb, she took small parts in the New Zealand feature Existence, played the young Louise Nicholas in the television film Consent: The Louise Nicholas Story, did stints on the long-running soap Shortland Street, and appeared as Astrid in The Hobbit: The Battle of the Five Armies (2014).
The pivot came with a film her parents showed her: Debra Granik's Winter's Bone. In a RogerEbert.com interview, McKenzie recalled asking her mother — who had told her, 'But you hate acting' — to understand that it 'sounds like a really great story to tell.' Granik's naturalistic, unshowy aesthetic became McKenzie's north star, and in a piece of perfect symmetry, her breakout role came in Granik's next masterwork. In Leave No Trace (2018), she played Tom, the teenage daughter living off the grid in the Oregon woods with her veteran father (Ben Foster), forced by the world to re-enter society. The performance was a revelation — watchful, tender, and completely without affectation — and it won her the National Board of Review Award for Breakthrough Performance. She was seventeen, and critics were already comparing her to the great screen naturalists.
What followed was one of the most carefully built young careers in modern film. In 2019 alone she appeared in three period films: as Philippa, Queen of Denmark, in David Michôd's The King; as Mary in True History of the Kelly Gang; and, most memorably, as Elsa Korr — the Jewish girl hiding in the attic — in Taika Waititi's Jojo Rabbit. In Waititi's seriocomic anti-hate fable, the friendship between Elsa and the pint-sized Hitler Youth member (Roman Griffin Davis) became the film's emotional heart; McKenzie filmed it in Prague as a teenager and carried scenes of enormous moral weight without ever reaching for effect. She told interviewers the film was 'a reminder to everyone about the atrocities of the past and a warning that we cannot let these things be repeated.'
2021 made her a bona fide leading presence. She starred as Maddox in M. Night Shyamalan's thriller Old, then carried Edgar Wright's psychological horror film Last Night in Soho as Eloise Turner, the wide-eyed aspiring fashion designer from Cornwall drawn into a murderous 1960s London hallucination — a demanding, nearly every-scene performance that proved she could hold a major studio picture on her shoulders. The same year she appeared as Lola in Jane Campion's The Power of the Dog, the film that would dominate awards season. A pattern had emerged, and critics noticed: McKenzie kept getting cast at the edge of the frame — the girl behind the wall, the daughter in the woods, the bride a pace behind Timothée Chalamet — because she could do something there most actors can't: she makes listening look like an action.
Since then the camera has moved her to center frame. She played the title role in the thriller Eileen (2023), portrayed embryologist Jean Purdy in the biographical drama Joy (2024) — the story of the scientists behind the first IVF baby — and took on Mary Partington in the historical musical drama The Testament of Ann Lee (2025) and Rose Davenport in the period satire Fackham Hall (2025). She voices MIST in the animated series Pantheon, and her recent slate includes The Uprising alongside Andrew Garfield and Victorian Psycho. The throughline from Leave No Trace to now is unbroken: a performer who never showboats, never coasts, and treats every role — whether hiding in an attic or holding a film's center — with the same fierce, quiet intelligence.
Our read on Thomasin McKenzie.
Thomasin McKenzie is the best young actor of her generation at the thing that matters most: being present. Watch any two of her films back to back and you'll see it — she's the still point in chaotic scenes, the listener who makes everyone else's acting better, the performer who can carry a close-up without moving a muscle.
Start with Leave No Trace, then Jojo Rabbit, then Last Night in Soho: that's the masterclass arc, from naturalistic child performance to moral anchor to full-blown leading lady. The family pedigree got her in the room; the talent is why she never left it.
The moments that made Thomasin.
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Selected career credits — verified via TMDB.
Alyce
Astrid
MIST (voice)
Elsa
Eloise Turner
Maddox Aged 16
Lola
Philippa, Queen of Denmark
Miss Lamb
Rose
Mary Partington / Narrator
Tom
Ursula
Mary Hearn
Official pages around the internet.