Synnøve Karlsen is a Scottish actress, born on July 30, 1996, in Glasgow, Scotland. Of Norwegian descent, she grew up in Helensburgh before moving to London at age 12. She studied at LAMDA and the Guildhall School of Music and Drama, leaving after being cast in her first major television role.
Karlsen gained recognition as Holly McStay in the BBC thriller Clique and later portrayed Clarice Orsini in Medici. Her screen credits also include Edgar Wright's Last Night in Soho, The Midwich Cuckoos, Bodies, Black Cab, and Miss Austen.
In 2025, she joined Apple TV+'s science-fiction series Foundation as Bayta Mallow. She has also worked on stage, including a New York production of Pygmalion.
