Emilia Annis I. Jones (born 23 February 2002) is an English actress. She is best known for her lead role as Ruby Rossi in the Academy Award-winning 2021 film CODA for which she has received a nomination for a British Academy Film Award for Best Actress. She is also widely known for playing the role of Kinsey Locke in the Netflix series Locke & Key (2020–2022). She has appeared in Doctor Who (2013) and Utopia (2013–2014). Her other lead film roles include Brimstone (2016), Ghostland & Two for Joy (both in 2018), and Horrible Histories (2019). She has also performed in several theatrical productions in London's West End.