Because you like Lain Iwakura in Serial Experiments Lain

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.

Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.

Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.

Cynical, judgmental, and hipper-than-thou, Enid Coleslaw wears her outsider status like a badge of honor. See them in Ghost World.

He might look like a pretty boy, but resourceful Leon Scott Kennedy is the man to have at your side during a crisis. See them in Resident Evil Series.

Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.

Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.

Phoenix Wright is an easygoing defense attorney who is rarely defensive. See them in Ace Attorney Series .