Dixie Violet Egerickx (born October 31, 2005) is an English actress. Born and raised in London, she began her professional acting career at a young age, earning critical acclaim for her leading role as Mary Lennox in the fantasy drama film The Secret Garden (2020). Her extensive credits also include notable performances in The Little Stranger (2018), Summerland (2020), the drama series Patrick Melrose (2018), and as Jo Ransome in Apple TV+'s miniseries The Essex Serpent (2022). In July 2026, it was officially announced that she had joined the main ensemble cast of Amazon MGM Studios' Boys of Tommen (2027) to portray the character Katie Wilmot in the Prime Video live-action television series.