Christy Carlson Romano (born Christy Michelle Romano March 20, 1984) is an American actress, author and singer. She is perhaps best known for her roles in the sitcom Even Stevens and the animated series Kim Possible, in which she is the voice of the title character, as well as garnering a considerable boost in fandom for providing the voice of Yuffie Kisaragi in Kingdom Hearts and Final Fantasy VII Advent Children..