Because you like Karen Smith in Mean Girls

A lone wolf with a confrontational streak, Bigby wants to dedicate his life to doing good. See them in The Wolf Among Us.

Fox Mulder is a devoted believer in aliens, monsters, and that the truth is out there. See them in The X-Files.

After surviving a CIA mission that was supposed to kill him, ex-military man John Reese bets it all on a chance to redeem himself. See them in Person of Interest.

When a half-breed breaks the rules, John Constantine deports them straight back to hell. He's trying to buy his way into heaven. See them in Constantine.

The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

Stuck somewhere between life and death, Talion is motivated by one thing only: vengeance. See them in Middle-earth: Shadow of Mordor.

The only thing Albert Wesker cares about is turning himself into a God. See them in Resident Evil Series.

Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.

John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.

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

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