Tsuchikage

The is the leader of Iwagakure and as such is the most powerful shinobi in the entire village.

First Tsuchikage
The First Tsuchikage is most likely the founder of Iwagakure. He was mentioned in the anime, but nothing more is known of him.

Current Tsuchikage
The current Tsuchikage is an old man with a size of one and half times the size of his head peice. He is very proud but appears weak with constant complaints refering to his hips.