Kidōmaru

Kidōmaru was a dark-skinned shinobi with black, shaggy hair tied into a ponytail and black eyes. He was the second-tallest member of the team and was always depicted with a confident grin on his face. Uniquely, Kidōmaru also had six arms and an eye on his forehead that was usually closed and concealed under his black Otogakure forehead protector. Kidōmaru's attire was a black, sleeveless shirt under a sleeveless grey tunic that bore the symbol of the Sound Four on the hem, and black skin-tight shorts. He wore black arm-warmers, traditional black shinobi sandals with calf-length leg warmers covered by bandages, and a purple, rope-like belt tied in an inverted bow around his waist. After being reincarnated, he looked like he did while alive with the exception the grey sclerae common in all the other ninja Kabuto Yakushi brought back.

In the anime, the Sound Four were originally prisoners of Orochimaru, forced to fight other prisoners to the death in battle royales. By surviving their respective matches, they proved themselves to be the strongest of Orochimaru's prisoners and as such were made his bodyguards. The Sound Four were at some point forced to accept Kimimaro as their leader, who easily defeated them all in battle and, because of this, their group became known as the Sound Five (音隠れの忍五人衆, Otogakure no Shinobi Gonin Shū, literally meaning: Hidden Sound Shinobi Five People).