1. Hanzo: Hanzo, also known as "Hanzo the Salamander," was a powerful character in Naruto. He became obsessed with power and made a deal with Danzo to kill Yahiko. He was defeated by Pain and later defeated again after being revived.
2. Sasori: Sasori showed talent in puppetry from a young age. He turned himself into a puppet, surpassing his grandmother Chiyo's limit. However, he fell at the hands of Chiyo.
3. Kakuzu: Kakuzu had five hearts and was capable of stealing other's hearts. He survived an assassination attempt by Hashirama Senju. He was killed by Kakashi and Naruto.
4. Kin and Gin: They were elite Jonin from the Hidden Cloud Village and wielders of the Sage of Six Paths' five elemental tools. They consumed the Nine-Tails' chakra and were considered vicious and ruthless. They were defeated and sealed by Darui and the coalition forces.
5. Black Zetsu: Black Zetsu greatly impacted the Naruto world through his intelligence and manipulation. He manipulated Indra Otsutsuki and orchestrated the downfall of Asura Otsutsuki. He was thrown into the Planetary Devastation by Naruto and sealed alongside Kaguya by Hagoromo.