Hannah Dominique E. John-Kamen is a British actress. She is known for her roles as Dutch in the Syfy television series Killjoys, Ornela in the HBO series Game of Thrones, F'Nale Zandor in Steven Spielberg's Ready Player One, and Ghost in Ant-Man and the Wasp.

Hannah was born in Beverley, Yorkshire, England, the youngest of three children of a Nigerian forensic psychologist father and a Norwegian fashion model mother. She attended primary school in Kirk Ella and received her secondary education at Hull Collegiate School, and also trained at the National Youth Theatre in London. In 2012, she graduated from the Central School of Speech and Drama.

John-Kamen began her professional career in 2011 when she provided her voice for the video game Dark Souls. She then went on to make episode appearances in television series Misfits (2011), Black Mirror (2011), Whitechapel (2012), The Syndicate (2012), The Midnight Beast (2012) and The Hour (2012).

In 2012, John-Kamen landed the lead role of Viva in Viva Forever, a West End musical based on the songs of the Spice Girls. Written by Jennifer Saunders and produced by Judy Craymer, Viva Forever premiered on 11 December 2012 at the Piccadilly Theatre to largely negative reviews. The Daily Mirror, however, praised John-Kamen's performance, noting, "It's a shame a talented cast, especially Hannah John-Kamen's Viva and the rest of Eternity, are let down by a clichéd plot and leaden dialogue." The show was eventually closed on 29 June 2013.

2015 saw John-Kamen land a starring role in SyFy's Killjoys. In 2016 John-Kamen had a guest starring role on HBO's Game of Thrones. In 2016, she appeared in "Playtest", an episode of the anthology series Black Mirror. She also appeared in Season two of the UK series The Tunnel, and played Ghost in the superhero film Ant-Man and the Wasp.

On John-Kamen's role in Steven Spielberg's Ready Player One, Kristen Tauer wrote: "While much of "Ready Player One" takes place in a virtual reality world, John-Kamen's character is unique in that she is rooted in the reality throughout the film."

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Wyatt Russell, Hannah John-Kamen, Lewis Pullman, and Florence Pugh in Thunderbolts* (2025)

Wyatt Russell, David Harbour, Hannah John-Kamen, and Florence Pugh in Thunderbolts* (2025)

Wyatt Russell, David Harbour, Sebastian Stan, Hannah John-Kamen, Lewis Pullman, and Florence Pugh in Thunderbolts* (2025)

Wyatt Russell, David Harbour, Sebastian Stan, Hannah John-Kamen, and Florence Pugh in Thunderbolts* (2025)

Julia Louis-Dreyfus, Wyatt Russell, David Harbour, Sebastian Stan, Hannah John-Kamen, and Florence Pugh in Thunderbolts* (2025)

Hannah John-Kamen in Thunderbolts* (2025)

Michael Douglas, Michelle Pfeiffer, Laurence Fishburne, Walton Goggins, Michael Peña, Paul Rudd, Evangeline Lilly, and Hannah John-Kamen in Ant-Man and the Wasp (2018)

Steven Spielberg, Ben Mendelsohn, George Michael, Simon Pegg, Mark Rylance, Perdita Weeks, Kamara Benjamin Barnett, Mandy June Turpin, T.J. Miller, Lena Waithe, Stephen Mitchell, Neet Mohan, Win Morisaki, Elliot Barnes-Worrell, Kae Alexander, Sarah Sharman, Robert Gilbert, Raed Abbas, Letitia Wright, Tye Sheridan, Asan N'Jie, Hannah John-Kamen, Cara Theobold, Olivia Cooke, Alphonso Austin, Amy Clare Beales, Jane Leaney, Kathryn Wilder, and Philip Zhao in Ready Player One (2018)

Robbie Amell, Avan Jogia, Kaya Scodelario, Tom Hopper, and Hannah John-Kamen in Resident Evil: Welcome to Raccoon City (2021)

Wyatt Russell, David Harbour, Olga Kurylenko, Sebastian Stan, Hannah John-Kamen, Lewis Pullman, and Florence Pugh in Thunderbolts* (2025)

The Cast and Crew of 'Thunderbolts*' Talk Big Personalities, Yelena's Return, and More!

Hannah John-Kamen

Hannah John-Kamen

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