Because you like Jake in Adventure Time
NiGHTS is a powerful but childlike spirit who hates being told what to do. See them in NiGHTS into Dreams.
For the sake of science, Kurisu Makise will persevere no matter how deep into the dark secrets of the world she finds herself. See them in Steins;Gate.
Oliver Tate is extremely articulate but hopelessly awkward. That's not a recipe for teenage happiness. See them in Submarine.
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.
A fourth grader without a moral compass, Eric Cartman lives on KFC, Taco Bell, Pizza Hut, and Cheesy Poofs. See them in South Park.
Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.
Veronica Lodge is a quintessential mean girl trying to make a better life, and a better self. See them in Riverdale.
Nick Miller might not have a bank account, but he defintely has a lot of love to give. See them in New Girl.
April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.
Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.
Winry Rockbell is an energetic tomboy mechanic with an empathetic streak. See them in Fullmetal Alchemist.
With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.