Olivia Kate Cooke (born 27 December 1993) is an English actress. She is known for her starring role as Emma Decody in the A&E drama thriller series Bates Motel (2013–2017) and as Becky Sharp in the period drama miniseries Vanity Fair (2018). She also starred in the horror film Ouija (2014), the comedy-drama film Me and Earl and the Dying Girl (2015), the period horror mystery film The Limehouse Golem (2016), the thriller film Thoroughbreds (2017), the sci-fi film Ready Player One (2018), and the drama film Sound of Metal (2020).