The actress Jessie Cave portrays a character created only for the film, a Water nymph. She appears when Fenoglio tells about the creatures that are included in his book, "Inkheart". Jessie Cave was born on 5 May 1987 in the United Kingdom. She is best known for her role of Lavander Brown (Ron Weasley's girlfriend) in the upcoming movie of Harry Potter, "Harry Potter and the Half-Blood Prince".