Hannah John-Kamen is a British actress. She is best known for her roles as Dutch in Killjoys and Viva in the West End musical Viva Forever. She is also known for her role as a Dothraki widow in the sixth season of the HBO series Game of Thrones and for voicing Sweet Shalquoir in the video game Dark Souls II.
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).