Kefka - Kefka serves as Emperor Gestahl's Court Mage (as stated in the GBA remake by Edgar, when Kefka first visits Castle Figaro). He was the first volunteer for an experimental Magitek infusion, under the supervision of Cid. The process was still flawed, and although Kefka gained the ability to wield magic, it warped his mind, turning him into a nihilistic and brutal psychopath.[
Altair - Well wiki had nothing on him but heres a picture
http://en.wikipedia.org/wiki/Image:A...%27s_Creed.jpg He is a very well trained badass assassin.
Luneth - is the protagonist and an orphan who was raised at the remote village of Ur by the priest, Topapa. When a massive earthquake happens, Luneth goes to investigate. He falls through a hole in the cave to the north of the village and eventually stumbles upon the magical Wind Crystal. The Crystal tells him of his identity as one of the chosen Warriors of the Light, and his duty to gather three other individuals who share his destiny to save the world from eternal darkness.