Because you like Sookie St. James in Gilmore Girls
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.
Years of being the less desirable Vargas sibling have given Romano quite an inferiority complex, as well as the temper to match. See them in Axis Powers Hetalia.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.
A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.
Napoleon Dynamite loves tater tots, mythical beasts, and reveling in his awkwardness. See them in Napoleon Dynamite.
A precocious 11-year-old, Satsuki Kusakabe is not quite as grown up as she pretends to be. See them in My Neighbor Totoro.
She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.
Flexibility is more than Helen Parr's superpower. It's a key tenet of her personality that allows her to be both firm and understanding. See them in The Incredibles.
You don't teach a class called "How To Get Away With Murder" without knowing a thing or two about getting away with things. See them in How to Get Away with Murder.