Because you like Rei Ayanami in Neon Genesis Evangelion

Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.

An upbeat, fun-loving teen, Sora would do anything for his friends. See them in Kingdom Hearts.

Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.

Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.

After being resurrected and discovering his new morphing abilities, Alex Mercer uses them to combat the virus now ravaging New York. See them in Prototype Series.

A bureaucrat in the Land of the Dead, Manuel Calavera is a jaded, sarcastic loner who just might have a hidden heroic side. See them in Grim Fandango.

Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.

The crown prince of the Fire Nation, Zuko has been ordered by his father to find the long-lost Avatar before he is allowed to return home. See them in Avatar: The Last Airbender.

Kenny McCormick is a boy of few words who likes nudie mags, NASCAR, monster trucks, origami, and Peruvian pan flute bands. See them in South Park.

Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.

Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.