Because you like Gogo Yubari in Kill Bill vol. 1

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

Finn is the world's last human who's "all about" understanding right and wrong. See them in Adventure Time.

Regina Mills is a cold evil queen turned chilly town mayor. See them in Once Upon a Time.

Charlie Kelmeckis is a wallflower who's starting to blossom into something more. See them in The Perks of Being a Wallflower.

Few high school students could be less concerned with labels. See them in Ouran High School Host Club.

Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.

Joel is a hardened, jaded survivor who keeps finding things to fight for. See them in The Last of Us.

Elio Perlman likes the piano, peaches, and his father's new research assistant a little too much. See them in Call Me by Your Name.

Accessing more than 10 percent of your brain can do strange things to anyone, and Lucy is Exhibit A. See them in Lucy.

Neurotic, motherly, and oh-so organized, Monica Geller is everyone’s favorite hostess, keen on settling down and starting a family - perhaps too much so. See them in Friends.

Socialite-turned-runaway-turned-waitress, Rachel Green is the legendary story of riches to rags, trying to work her way up again with the help of her friends. See them in Friends.