1. Kosuke:  a long-time Chunin, proves his strength by defeating many enemy ninjas with his swordsmanship skills.

2. Matt Day: Mocked as a Chunin, Maito Dai surprises everyone by unlocking the Eight Gates and defeating the Seven Ninja Swordsmen.

3. Uchiha Fugaku: Father of Sasuke and Itachi, Uchiha Fugaku hides his true strength and is killed by his own son.

4. Kabuto Yakushi: A doctor turned antagonist, Kabuto becomes powerful due to his obsession with strength.

5. Karin: Karin, a member of the Hawk team, possesses healing abilities and sealing techniques. The condensed version: Gekko, a skilled Chunin, proves his strength in battle. Maito Dai surprises others by defeating the Seven Ninja Swordsmen. Uchiha Fugaku hides his power before being killed by his son. Kabuto becomes a formidable opponent due to his obsession with strength. Karin possesses healing abilities and seeks revenge on Sasuke.