Because you like Emmett Brown in Back to the Future

Buddy Pine is an unhinged superfan of superheroes using technology to take down his idols. See them in The Incredibles.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.

Jack Skellington is a nightmare-man with a soft heart and smooth voice. See them in The Nightmare Before Christmas.

C is for cookie, and that's more than good enough for him. See them in Sesame Street.

Hunting ghosts is both a job and a passion for Abby Yates. See them in Ghostbusters (2016).

Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.

You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.

Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

A formerly righteous wizard, Saruman has been corrupted by the forces of evil. See them in The Lord of the Rings.

It's a mad, mad world, but Alice has a surprisingly level head as goes her own way down the rabbit hole. See them in Alice in Wonderland.