Johan Liebert is the titular main antagonist of the manga and anime series Monster and the overarching antagonist of its light novel sequel Another Monster.
2. Light Yagami:-Light Yagami is the main protagonist of the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata.
3. Madara Uchiha-Madara Uchiha is a main antagonist manga and anime character in the Naruto series created by Masashi Kishimoto.
4. Frieza:-Frieza was the emperor of the universe, who controlled his own imperial army and was feared for his ruthlessness.
5.Ryomen Sukuna:-Ryomen Sukuna is a fictional character and one of the central antagonists of the manga and anime series Jujutsu Kaisen created by Gege Akutami.
6. Muzan Kibutsuji:-Muzan Kibutsuji is the main antagonist of Demon Slayer: Kimetsu no Yaiba. He is the Demon King, the first of his kind, and the progenitor of all other demons in existence.