26 july, 1979
Rylance was born Juliet van Kampen in Hammersmith, London to Claire van Kampen, a composer and Chris van Kampen, an architect. Her stepfather is the British actor and director Mark Rylance. She graduated from the Royal Academy of Dramatic Art in 2002.
In 2008, she married the American actor Christian Camargo at New York City Hall. She had met Camargo over a decade earlier when he worked with her stepfather at Shakespeare's Globe Theatre.