Actually, the Final Fantasy Wiki has added some background info on Kefka. While some of it is said in the game, I wonder where the rest came from. Apparently it comes from a source from Square.
Quote:
Born to unknown parentage, Kefka was abandoned at birth. Raised in an orphanage in Thamasa, Kefka was beaten severely by the orphanage head, and developed a taciturn personality. Eventually he left Thamasa for Vector.
Graduating at the top of his class from the imperial academy, Kefka became the apprentice of Cid del Norte Márquez, and underwent an infusion that gave him the ability to use magic. Though it had no immediate side effects, it lead to the gradual degeneration of Kefka's sanity.
At the age of 23, Kefka was appointed commander of the magitek knights. In the following years, he took an interest in the recently orphaned daughter of an Imperial soldier and a Tzen female aristocrat, Celes Chere. Kefka used his political pull to make sure that Celes was brought up a magitek knight. Kefka political ascension culminated when at age 31, he was appointed to the position of Imperial Prime Minister. Kefka's reign, however, would be short-lived. At a banquet celebrating the appointment of his protige Celes Chere to Rear Admiral, Kefka cracks. The magitek infusion from years prior finally manifested itself.
Kefka showed marked change in behavior; once a shy, reserved man, Kefka began dressing in garish robes, wearing makeup, and playing with dolls; his once keen strategic mind deteriorates, and all that is left is a thirst for death and destruction, Kefka is promptly removed from military duty. Still feeling indebted to him for his years of service, and appreciating his loyalty, Gestahl appoints Kefka to the position of Court Mage.
_________________
(No longer a mod)
On sabbatical...