Katherine Langford (born April 29, 1996) is an Australian actress. After appearing in several independent films, she had her breakthrough starring as Hannah Baker in Netflix's hit drama series 13 Reasons Why (2017-2018), earning herself a Golden Globe Award nomination. She has made appearances in Love, Simon (2018), Knives Out (2019), Netflix's Cursed (2020), and Spontaneous (2020). In 2024, Langford made her West End debut as Sally Bowles in the musical Cabaret at the Kit Kat Club.