Elizabeth Middleford (エリザベス・ミッドフォード) is the daughter of Marchioness Frances Middleford and her husband, and is both Ciel's cousin and fiancée. Ciel sees her as an important friend and a girl that he needs to protect because he says that he does not want to lose anything important again. She loves Ciel with all her heart and tries to help cheer him up. She has a love for cute things, to the point of redecorating Ciel's mansion, dressing up his staff, and setting up a dance party.She is voiced by Yukari Tamura in the anime adaption and Chiwa Saitō on the drama CD. (Summary from Wikipedia)
Earl Ciel Phantomhive (シエル・ファントムハイヴ, Shieru Fantomuhaivu?) is the business-savvy, twelve-year-old head of the English Phantomhive noble family, taking over after the deaths of his parents, Lord Vincent and Lady Rachel Phantomhive. He runs Funtom Company, which manufactures toys and sweets, with the later addition of a food branch after winning a Royal Warrant. His right eye, which is usually covered with a black eyepatch, bears a pentacle, the sign of the Faustian contract he made with the demon Sebastian. Sebastian says that the mark on Ciel is proof of their contract. He also says that demons mark their prey so that they can locate them.He is close to his cousin and fiancée Elizabeth, seeing her as an important friend and someone he needs to protect. Before the loss of his parents, Ciel seemed to be a happy child.