Star of the Netflix original series 13 Reasons Why in the role of Hannah Baker. She was cast in the lead role of the 2017 film The Misguided as well as had notable roles in the films Love, Simon and Knives Out.
She was a nationally ranked swimmer at Perth Modern School. She decided to study acting after graduating from the school.
Her first acting gig was in a short film called Daughter which debuted at Cannes Film Festival in 2016.
She and her sister Josephine were born to Stephen and Elizabeth Langford in Perth, Australia. Both of her parents are doctors.
She starred opposite Dylan Minnette in 13 Reasons Why.