Because you like James P. Sullivan in Monsters, Inc.
A bumbling hobbit, Bilbo Baggins is becoming a part of something much larger than himself as he embarks on a quest. See them in The Hobbit: An Unexpected Journey.
Though raised to think of himself as a monster, Quasimodo has a heart that holds nothing but compassion. See them in The Hunchback of Notre Dame.
Underneath his preening narcissist exterior, Schmidt is, well, still kind of a preening narcissist. But he has a good heart too. See them in New Girl.
Molly Weasley runs a household teeming with magic: gnomes run around the garden, dishes wash themselves, and noisy ghouls rule the attic. See them in Harry Potter Series.
Few can match this dwarf when it comes to self-confidence. Gimli is as eager for a good time as he is for a fight. See them in The Lord of the Rings.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Merlin is half awkward teenager, half super-powerful wizard. He serves Prince Arthur of Camelot during the day and illegally learns magic at night. See them in Merlin.
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
Popular jock Andrew Clark is pretty bizarre. He's just better at hiding it, that's all. See them in The Breakfast Club.
Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.
Tina Goldstein is better at getting the job done than following the rules. See them in Fantastic Beasts and Where To Find Them.