Kadaj

Kadaj is the antagonist of Final Fantasy VII: Advent Children. He is vaguely childish and violent. In Distance: The Making of Advent Children, one of the special features on the DVD, Tetsuya Nomura states that Kadaj personifies the insecurity of a young man.

Kadaj is the leader of the trio of villains featured in the movie, the other members are Loz and Yazoo. The three are refered to as "remnants" of Sephiroth, and are searching for Jenova so they "can be whole again." It isn't revealed what he means until the end, when Kadaj fuses with Jenova's head and becomes Sephiroth.

Kadaj seems jealous of Sephiroth. At one point he says that it's unbearable to think that Jenova would want Sephiroth more than him. Kadaj is left-handed, and is obviously a very skilled combatant. He uses a sword with two katana blades in battle against Cloud. He is described by Vincent Valentine as a larva form of Sephiroth, meaning that he has not yet reached his full potential. After being defeated by Cloud, he absorbs Jenova's remnants and Sephiroth takes over his body. He finally dies after Cloud defeats Sephiroth, who then left Kadaj's body.