In anime, there are several characters who exhibit traits of sociopathy or psychopathy. Keep in mind that these are fictional characters designed to create compelling stories, and their portrayal may not always reflect real-life mental health conditions accurately. Here are some anime characters who are often considered to be sociopaths or psychopaths:
Light Yagami from "Death Note" - Light starts as a brilliant high school student who comes into possession of a Death Note, a notebook that can kill anyone whose name is written in it. He develops a god complex and becomes a vigilante, attempting to create a utopian world by eliminating criminals.
Johan Liebert from "Monster" - Johan is a highly intelligent and manipulative serial killer who enjoys causing chaos and suffering in the lives of others.
Griffith from "Berserk" - Griffith is a charismatic and ambitious leader who shows psychopathic traits as he manipulates and betrays his friends for his own gain.
Hisoka Morow from "Hunter x Hunter" - Hisoka is a cunning and sadistic character who enjoys battling strong opponents and is unapologetically selfish.
Izaya Orihara from "Durarara!!" - Izaya is a master manipulator who takes pleasure in observing and influencing the lives of others, often causing chaos.
Envy from "Fullmetal Alchemist" - Envy is a shape-shifting homunculus who takes pleasure in the suffering of humans and plays a major role in the series' antagonistic plot.
Shou Tucker from "Fullmetal Alchemist" - Tucker is a deranged alchemist who demonstrates sociopathic behavior through unethical experiments on humans and animals.
Makoto Shishio from "Rurouni Kenshin" - Shishio is a power-hungry and ruthless antagonist who seeks revenge and does not hesitate to use violent methods to achieve his goals.
It's important to remember that these characters exist in the context of fictional stories and should not be used as accurate representations of real-life mental health conditions. Sociopathy and psychopathy are complex and serious conditions that require professional assessment and diagnosis. Additionally, many anime series explore dark themes and complex characters, so their actions may not reflect typical behavior or psychology in reality.