Hannah John-Kamen is an English actress. She is known for her roles as a bounty hunter in the Syfy television series Killjoys (2015–2019), Ava Starr / Ghost in the superhero film Ant-Man and the Wasp (2018) and Thunderbolts* (2025), the title character in the Netflix mystery miniseries The Stranger (2020), and Jill Valentine in the film Resident Evil: Welcome to Raccoon City (2021).

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