Kabuto Yakushi

Kabuto Yakushi is Orochimarus personal medic assistant and general righthand man. Kabuto was found as a young boy by a chief medical officer of the Konoha Medical Unit Squad. The officer brought Kabuto with him back to Konoha and raised him as a son. Kabuto eventually began acting as a spy for numerous countries and organizations such as Akatsuki before coming under the servitude of Orochimaru. Kabuto has since used his various former affiliations as a means to gather intelligence on Orochimarus behalf.