Because you like Mike Ehrmantraut in Breaking Bad
John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.
Nemo is a small fish in a vast ocean, but he dreams of seeing it all. See them in Finding Nemo.
Larger than life and wealthy beyond measure, Willy Wonka is more than a titan in the sweets industry; he is an arbiter of taste. See them in Charlie and the Chocolate Factory.
A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.
While he might be too cool for school, Soul isn't too cool to do the right thing. See them in Soul Eater.
Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.
Willow Rosenberg may be a witch who can defeat the forces of evil, but she still gets emotional over kittens on the Internet. See them in Buffy the Vampire Slayer.
Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
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.
A girl who grew up on stories, Meggie Folchart is as loyal and intrepid as one of her fictional heroines. See them in Inkheart.