Ugai

is a medical-nin of Konohagakure.

Appearance
The manga depicts him as a young man with dark-coloured hair wearing the standard uniform of the hospital medical ninja. In the anime, however, he is given a much older appearance with a beard and glasses.

Sasuke Retrieval Arc
He is an inexperienced, yet knowledgeable, medical-nin. He helped Might Guy find Tsunade in the Konoha Hospital. He then looks on in shock when Migaki arrives suddenly, telling Tsunade that something terrible had happen.