That’s an anti-hero

@Bonkidus.Shwonkidus

Thank you. ‏

Vigilante is also acceptable.

@Dr. Nice

Thank you, only my character is similar to (Spider Man) but from another parallel world, and he literally kills criminals, unless they have a family, he will not be killed. I wrote his story briefly in (Spider-Man Wiki). If you are interested in his story, I wrote it about a month ago

Anti-Hero.

There's a ton of examples.

Deadpool

Venom

Morbius

Elektra

Magneto

@RJ Plotner

Thank you, but I mean a custom name. There is a name assigned to a hero who uses the name of justice and is merciless to his enemies.