Sophie Bathsheba Thatcher (born October 18, 2000) is an American actress. She is best known for starring as Natalie in Showtime's psychological drama series Yellowjackets (2021–present), and for her appearance in The Book of Boba Fett (2022). In 2018, she made her big screen debut in the American science fiction film Prospect. Thatcher's work on stage includes productions of Oliver!, Seussical, The Diary of Anne Frank, and The Secret Garden.

Early life
Thatcher attended Evanston Township High School. She grew up singing and started acting when she was 4 years old. She went to a performing arts school for musical theater, and her on-camera experience led her to pursue acting more than singing.