Xehanort is the main antagonist of the Kingdom Hearts series, though he appears in many forms.
Xehanort and incarnations
- Master Xehanort, the original Xehanort
- Terra-Xehanort, Xehanort possesing Terra
- Braig, One of Ansem the Wise's apprentices that betrayed him so he could acquire a Keyblade. Xehanort implanted a piece of his heart into Braig and made him Half-Xehanort
- Xigbar, Braig's Nobody in which Xehanort implanted a piece of his heart inside.
- Isa/Saïx, Xemnas's right hand man, and presumably Half-Xehanort.