Merurm (Hunter X Hunter) Despite being relatively young, the limitless pool of strength makes Meruem unstoppable. The Chimera Ant King is intelligent and proficient in battle. His ability to grow and adapt to ever-changing situations makes him the strongest villain in the history of anime.
Boros (One Punch Man) It's difficult to gauge the strength of One Punch Man's villain due to Saitama's limitless powers, However, Boros remains the most robust villain Saitama faced. While many villains would not even stand one blow from Saitama, Boros withstood some direct punches.
Madara Uchiha (Naruto) Madara Was the most powerful member of the uchiha clan who grew stronger with time.he cheated death with his raw power and deadlly abilities on multiple occasions.
Sosuke Aizen (Bleach) Aizen's strength comes from his intellect and utterly ruthless nature. Although he has superpowers, he is no slouch in hand-to hand combat and sword battle.
Friesa (Dragon Ball) Freiza remains the strongest villain in the canonical Dragon ball anime.He pushed Goku and other Z fighters to new levels The scourge of Saiyans even collaborated with goku and his friends in the tournament of power saga.
Father (Fullmetal Alchemist: Brothehood) Father tricks van hohenheim into sacrificing the people of Xerxes to create a philosopher's stone.he draws his power from the souls of millions of people.He absorbs his knowledge from God,allowing him to use more impressive magic.
All for one (My Hero Academia) Life Forcemakes 'All For One' more or less immortal.However,his ability to steal the quirks of others makes him one of the strongest supervillains. His lack of vision only heightens his other senses.
The Demon king (The seven DeadlySins) The Demon king Created then ten commandments,but he was more powerful then all of them. his 'the ruler' power permits him to invert any attack directed his way.Moreover,he can conjure powerful weapons and creatures with his dark magic.
Blackbeard (one piece) Being one of the longest spy series on NEtflix, Fauda in an exciting and intriguing thriller that depicts both sides of the war through sraeli and palestinian agents.