Ladon is the commander of the other Giants, the sons of Typhon. He hurts Mei badly and uses him as bait for a trap. There he is able to kill Nicole with a surprise attack.
Ladon the dragon, guardian of the Garden of the Hesperides.
He was later transformed into a constellation, precisely like Shiryu!
His attack is an illusion that destroys the opponent’s mind. But not strong enough to defeat Shiryu.