Ōnoki

is the current and the leader of Iwagakure. He is called. Ōnoki is an old man with a size of one and half times the size of his head piece. His facial features include a triangular beard and a moustache with angular corners.

Personality
He is very proud but appears weak with constant complaints referring to his hips. Kurotsuchi describes him as a stubborn old man.

Five Kage Summit arc
He is first seen preparing for travelling to the meeting of the five Kage, and received a bid from his village to return safely and at the same time, display to the other kages how powerful the one from Iwagakure stands out, accompanied by an incredibly large young fellow named Akatsuchi as well as an insulting young ninja named Kurotsuchi, who even suggest that he should retire soon.

Albeit complaining about his hip, he still wants to carry his own bag and rants about being the Tsuchikage only to hurt his back when he takes on his backpack. He is currently being carried by Akatsuchi.

Quotes

 * (To his two bodyguards) "You... you idiot, who do you think I am!? I am the Tsuchikage, feared as Iwagakure's Ōnoki of the Double Scales!!"

Trivia

 * Onoki seems to be the oldest and shortest current kage.