You lack hatred.

[EveryThingAnime]

Kakashi would be a good evil character. He has that cool/chill personality like Itachi and he can handle his own in a fight.

 

[Jurian Uchiha]

itachi sama U_U

Yeah a real evil Itachi or Minato? I'd kill myself already lol jk.

 

[Forbidden Twilight]

Naruto.......imagine an even darker version of Menma or the dark waterfall Naruto. He would be a perfect villain with his back story and traits of never giving up. Also, think about his fight with sasuke some time ago when he himself said their roles could of been reversed.