Anime with a very badass/cold/emotionless maincharacter or side-character?

Hello there Im looking for a anime with a very badass cold or badass main character or side character whos pretty much No Fucks Given and just pretty much doesnt give a fuck attitude. Some animes that Ive watched that matchs this title. One Punch Man Saitama Darker Than Black Hei Classroom of The Elite Kiyotaka Ayanokouji Attack on Titan Levi Problem Children Are Coming from Another World Arent They? Sakamaki Izayoi Log Horizon Shiroe Mahouka Koukou no Rettousei Shiba Tatsuya Hunter x Hunter Killua Seven Deadly Sins Meliodas No Game No Life Sora Overlord Ainz Ooal Gown Tokyo Ghoul Kaneki Are there any anime which is just like these anime with a very cold badass and emotionless main character or sidecharacter please recommend me some.