Shamon

The was the successor of the First Kazekage. He was the first to research the jinchūriki, in an attempt to greatly enhance the power of the village.

Background
Before becoming Kazekage, he accompanied the First Kazekage to the first ever Five Kage summit. There, he listened to Tobirama Senju's plan to sell the tailed beasts' to the other allied villages, as well as Hashirama Senju's plea for cooperation between the five hidden villages. At a later point, he became the Second Kazekage.

Appearence
The Second Kazekage was a bald man, with an extremely elaborated dragon-shaped tattoo which seems to cover his head. According to his statue representation in Suna, he used to wear the ceremonial clothes of his village.

Abilities
Though not much is known about his abilities, the fact that he was appointed the Second Kazekage indicates he was undoubtedly a powerful shinobi. Even before becoming a Kage, his skills were such that he was appointed to accompany his predecessor to the first Kage summit. He was also very knowledgeable and tactical as he was the first shinobi to do research on the jinchūriki to give his village a better influence among the shinobi nations.