1. Kakashi: Highly talented ninja, surpassed peers at a young age. Joined Anbu Black Ops after Rin and Obito's deaths. Trained for years and became elite Jonin. Mentor of Team 7, known as "Copy Ninja".

2. Itachi Uchiha: Incredibly talented, showed exceptional skills. Graduated ninja academy at 7, became Chunin at 10. Joined Anbu at 11, became captain at 13. Later became powerful rogue ninja.

3. Shisui Uchiha: Served in Konoha's Anbu.

Friend and mentor to Itachi. Known for teleportation and illusion abilities, on par with Kage level. Died at a young age.

4. Kisame Hoshigaki: Strongest member of Mist Anbu. Tasked with killing comrades to prevent information leakage. Stole Samehada sword and joined Akatsuki. Strength unquestionable.

5. Orochimaru: Member of Konoha's Anbu, but not directly under Third Hokage's command. Joined Root organization, conducted forbidden experiments and developed forbidden techniques. Defected from Konoha, Kage-level master now.