Pai-Meio: The ninja master father of all the members of the "Brotherhood of the Black Ninjas" who was responsible for choosing Tonin to save his village from Vilano-san. He is a spoof of the character Pai Mei. He was introduced in the first season serving as Tonin's master and guardian during his stay in feudal Japan, having trained him to become a ninja and defeat Vilano, however at the end of the same season he ends up betraying Tonin revealing himself to be a tyrannical leader after Vilano's first defeat abusing his power of having several the ninja sons to dominate the village. He received the title Pai-Meio (literally Half-Father in Portuguese) after being betrayed by his old college friends Vilano and Mipussy having his legs cut off by Vilano in the last test. It is usually seen getting around with a small wooden cart, but he is also able to float, having learned this skill through books. In the third season he returns as one of the main antagonists, allying himself with Vilano to try to defeat Tonin together, but just like Vilano he fails and dies being taken with him to hell.
