Hannah Dominique E. John-Kamen is a British actress. She is known for her roles as Yalena "Dutch" Yardeen in the Syfy television series Killjoys (2015–2019), F'Nale Zandor in the 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).

The Stranger is an eight-part British mystery thriller miniseries written primarily by Danny Brocklehurst and based on the 2015 Harlan Coben novel of the same title. The miniseries premiered on Netflix on 30 January 2020. It stars Richard Armitage, Siobhan Finneran, and Hannah John-Kamen. It was filmed in and around Manchester and Stockport.