凯茜·克拉克，Kacey Louisa Barnfield[1] (born 14 January 1988[2]), also credited as Kacey Clarke, is an English actress. As a teenager she played Maddie Gilks in the long running British television series Grange Hill, on which she was in six series. As an adult, her roles have included Crystal in the American action film Resident Evil: Afterlife, and Katie Sutherland in British comedy The Inbetweeners. In 2014, Clarke was listed as number 99 in FHM's 100 sexiest women in the world.[3]