Hannah Dominique John-Kamen is an English actress. She is known for her television roles in Black Mirror (2011–2016), Killjoys (2015–2019), Brave New World (2020), and Netflix miniseries The Stranger (2020). She has portrayed Ava Starr / Ghost in the superhero films Ant-Man and the Wasp (2018) and Thunderbolts* (2025). She has also starred in various films, including SAS: Red Notice (2021), Resident Evil: Welcome to Raccoon City (2021) and Unwelcome (2023).

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