Because you like Alphonse Elric in Fullmetal Alchemist

Impassive, overly literal, and a little short on people skills, Angel dedicates her life to enforcing the rules. See them in Angel Beats!.

For somebody who won't answer questions, the enigmatic C.C. sure asks a lot of them. See them in Code Geass.

Fate has forced Amuro into the terrors of war, and he must use the Gundam and all of its power if he is to make it out alive. See them in Mobile Suit Gundam Series.

Duck, girl, and legend: Ahiru's identities confuse even herself at times, and she often wonders which of them is truly her. See them in Princess Tutu.

After finding a mysterious object in one of the many rooms in her father's mansion, Bulma is inspired to discover its secrets. See them in Dragon Ball.

A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.

Undercover as an average high school student, Kallen Stadtfeld is actually most at ease when the action's fast, furious, and dangerous. See them in Code Geass.

Wise beyond his years, Ashitaka is a dutiful young prince who respects the balance of life. See them in Princess Mononoke.

China has five thousand years of history, and he's optimistic he'll win over the Allied Powers to the wisdom of his ways. See them in Axis Powers Hetalia.

An opportunistic fugitive-turned-bounty-hunter, Faye Valentine uses both grit and her good looks to get ahead. See them in Cowboy Bebop.

Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.

The "runt" of his biker gang, Tetsuo Shima grapples with a perpetual inferiority complex. See them in Akira.