Also known as the "Shadow Walking Tactician"
Like Axel, Zexion, the "Shadow Walking Tactician", is a skilled manipulator by nature, though as we discover, not skilled enough. Appearing in Chain of Memories, his talents lay outside of battle, even to the point where he does not possess a weapon; he is the only Organization member who does not fight in a gameplay battle and lacks a voice actor.
He is one of two Organization members who appear only in Riku's story. He has the ability to identify individuals by their scent, sensing when they die, and seems to be able to do so from great distances. His element is shadow.
Zexion informs Vexen and Lexaeus when he senses two new scents in the lowest basement of Castle Oblivion. One of the scents is Maleficent, and he senses that she is eliminated by the other visitor, one with a scent "exactly similar" to that of the Superior. With little information on what was happening, he and the others decide to await development. Not long after, he identifies the other guest in the castle: Riku. He observes the boy's progress through Castle Oblivion until Vexen's death, when he and Lexaeus decide that they should use Riku just as they believe Marluxia will use Sora.
After Larxene, Lexaeus and even Marluxia are killed, Zexion sees that Riku is no longer needed and attempts to destroy him himself. He leads Riku into a manifestation of Destiny Islands, Sora and Riku's home, in which Riku sees his frien...