Mū

A Kage resurrected by Kabuto for the Fourth Great Shinobi War. Which country he originated from is unknown; the possibilities are Iwagakure, Kumogakure and Kirigakure, since all the previous Hokage are sealed in the shinigami and he doesn't look like any previous Kazekage seen in the Hidden Sand Statues.

Many Kirigakure ninja, like Zabuza or Previous Samehada Wielder are seen with bandages on their face, so this might suggest, this is First, Second or Third Mizukage

Appearance
His body appears to be covered in bandages with only his eyes and nose visible. He also wears a dark colored headband with no markings.