Who is the evil dude in Kingdom Hearts 3?

Answer 1

Funny you should ask! It is a Keyblade master, named Master Xehanort. If you played Kingdom Hearts 2, this name might sound familiar. Only, you may ask why he is so young and why Master Xehanort is so oldish. The main protagonists are Terra, Aqua, and Ventus, but since the events of Kingdom Hearts 3: Birth By Sleep, Terra became outraged at the end of the game and opened his heart to the darkness that kept him from becoming what he trained for: a Keyblade Master. Master Xehanort had been trying to get this to happen all through the game so that he may steal the body while the soul sank into darkness, only so that he could live to see his dark empire reign supreme. He took Terra's body and the hair turned white, but something happened that made him forget everything. Ansem the Wise found him and made him his apprentice and such. The other bad guy in Birth By Sleep is Vanitas, the darkness extracted from Ventus's heart when he was Master Xehanort's apprentice. He was too good for Xehanort's dark purposes so he stole the darkness and made Vanitas. If Vanitas and Ventus merge they will create an ultimate weapon: the X-Blade.