Ansem the Wise

Ansem the Wise was a human featuring in Kingdom Hearts II. He was the Master of Xehanort, Braig, Dilan, Even, Aeleus, and Ienzo before they became Nobodies through the foolish experiments of Xehanort. He also ruled over Radiant Garden before the Heartless turned it into a place of darkness.

He took on the name of DiZ shortly after the betrayal of Xehanort, DiZ standing for 'darkness in zero', which he believed was what had happened to his apprentices - they had become dark and were nothing anymore. He was killed by one of his own machines trying to 'digitize' the moon of Kingdom Hearts.

Triva

 * In the japanese version, Ansem was voiced by seiyuu Genzo Wakayama, who voiced Zeus on Disney's Hercules. In the Enlish dub, Ansem was voiced by famous actor Christopher Lee.