Hannah Dominique E. John-Kamen (born September 7, 1989) is an English actress. She is known for her roles as Yalena "Dutch" Yardeen in the Syfy television series Killjoys (2015-2019), Ornela in the sixth season of the HBO series Game of Thrones (2016), F'Nale Zandor in Steven Spielberg's film Ready Player One (2018), Ava Starr / Ghost in the superhero film Ant-Man and the Wasp (2018), the title character in the Netflix mystery miniseries The Stranger (2020), and Jill Valentine in the film Resident Evil: Welcome to Raccoon City (2021).