Gemma Chan (born 29 November 1982) is an English film, television, and theatre actress and former fashion model. She portrays Charlotte in season four of the Showtime and ITV2 series Secret Diary of a Call Girl; Ruth in Channel 4's Fresh Meat; Mia Bennett in the BBC's Doctor Who "The Waters of Mars" and Soo Lin in Sherlock. She also appeared in Exam and Paramount Pictures' action-thriller Jack Ryan: Shadow Recruit. She stars in Humans, an AMC/Channel 4 science-fiction drama, which premiered in June 2015. Series Two aired in 2016 and Series Three in 2018. She will portray Minn-Erva in the 2019 Marvel Studios film Captain Marvel.