Zexion

^{Zexion (ゼクシオン, Zekushion), also known as the "Cloaked Schemer" (影歩む策士, Kage Ayumu Sakushi, lit. "Shadow-walking Schemer"), uses his power of illusion to mimic others' weapons, disguise himself as others, and create duplicates of himself. He uses a lexicon, the Book of Retribution (裁きの書, Sabaki no Sho), as his weapon. His original form is Ienzo (イエンツォ, Ientso), a silent young orphan who is taken in by Ansem as one of Ansem's apprentices after his parents' deaths, and suggests the creation of an underground laboratory for their research on the heart. Prior to Kingdom Hearts II Final Mix, Zexion's weapon and powers were not revealed because Nomura was unsure if they would be revealed later. Nomura decided to keep them a secret, and the development team depicted the character's gravestone in the World That Never Was that would have shown his weapon as destroyed. The character's voice actors are Akira Ishida for the Japanese game releases and Vince Corazza for the English releases.
Zexion is one of two Organization members who only appear in Riku's story mode in Chain of Memories. Zexion initially plans to use Riku against Marluxia and his co-conspirators, but sees Riku to be of no use after Sora defeats Marluxia and attempts to destroy him. Using the card created by Axel from Sora's memories, Zexion draws Riku into a simulation of Destiny Islands where he torments the Riku with his guilt over the islands being destroyed. He then assumes the guise of Sora and attacks Riku, engulfing him in light. However, Naminé—disguised as Kairi—intervenes to convince Riku to accept both light and darkness. With newfound confidence, Riku overpowers Zexion, causing him to retreat. Afterward, Axel determines that Zexion "knows too much", and brings the Riku Replica to Zexion, convincing the Replica that he can become "real" by gaining power that the real Riku does not have, which he does by killing Zexion and taking his power as his own. His death leads to the revival of an adult Ienzo, as seen in Kingdom Hearts 3D: Dream Drop Distance.}