True Darkness, the remaining three sought to summon Kingdom Hearts to avenge their deceased friends, not realizing that this is also part of the Darkness's plans. The last of the upperclassmen are killed by the Darkness-possessed Baldr during the final confrontation at Scala ad Caelum, but Hoder's ghost briefly returns to help Eraqus and Xehanort defeat Baldr. is the designation given to a mysterious girl mentioned by Ansem, Seeker of Darkness and Ansem the Wise in Kingdom Hearts III. Her whereabouts and true identity are currently unknown. The is the spirit of a mysterious girl lingering within the Final World. While her identity is unknown, she appears to be a form of another character who has previously appeared in the series. She originally came from Quadratum, a world from "the other side". The Nameless Star is voiced by Risa Shimizu in Japanese and Madison Davenport in English. is a willfull embodiment of True Darkness, from which all other darkness spawns, and who exists in thirteen separate incarnations. In the aftermath of Union χ, seven are sealed within the Master of Masters and his six apprentices; four are trapped within the data Daybreak Town; one is sealed inside Ventus, later to be released as Vanitas; and one is unaccounted for. is an inhabitant of Scala ad Caelum whom Brain meets at the end of Kingdom Hearts Union χ. Disney and Square Enix characters Mickey Mouse Mickey Mouse is depicted in the Kingdom Hearts series as the king of Disney Castle, frequently referred to in-game as "King Mickey" or simply . He is also an experienced Keyblade Master, alternatively wielding a golden version of Sora's "Kingdom Key" retrieved from the realm of darkness, and the "Star Seeker" he is seen using during his apprenticeship to Yen Sid in Birth by Sleep. Mickey is absent for most of the original game, which sees him departing his world to discover a solution to the Heartless' invasion, leaving instructions for Donald and Goofy telling to find and protect the Keyblade wielder. He has a more active role fighting alongside Sora and his allies in later installments, which first required the approval of Disney. He is a playable character in Kingdom Hearts II, stepping in to replace Sora whenever the player is defeated during certain boss battles until he is able to revive Sora. He is also available for play in the "Mission Mode" of Kingdom