Because you like Penelope Garcia in Criminal Minds

Killua Zoldyck is so tired of killing. He just wants to be a kid, hanging out and doing stuff with his friends. See them in Hunter x Hunter.

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.

A vain and arrogant womanizer, Roy Mustang has hidden depths. See them in Fullmetal Alchemist.

Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.

Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.

Self proclaimed, Fat Amy, likes horizontal running and mermaid dancing. Important skills, one could argue. See them in Pitch Perfect.

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.

Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.

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 nurturing, selfless, and level-headed leader, Makoto Tachibana loves looking out for his friends. See them in Free! Iwatobi Swim Club.

Ruling with an iron fist, Pablo owns the drug trade and is bathing in the fame and wealth that the cocaine trade in Columbia offers. See them in Narcos.