Учіха Ітачі

Itachi Uchiha is a missing-nin from Konohagakure, and a prominent member of Akatsuki, partnered with Kisame Hoshigaki. He is Sasuke Uchiha's older brother.

Ever since his first appearance, Itachi had always been mysterious, and had acted as though he was hiding his true self. While flashbacks to his past showed that he was a compassionate brother and person, his later acts and claims made it seem that this was mostly just an act.