Because you like Ultron in Marvel Cinematic Universe
Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.
After years of living vicariously through other people's heroic stories, Wade Watts is about to become a hero himself. See them in Ready Player One.
K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.
Cat Grant gets what she wants: a piping hot latte or an interview with Supergirl. See them in Supergirl.
Buddy Pine is an unhinged superfan of superheroes using technology to take down his idols. See them in The Incredibles.
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.
Relentlessly cheery Ned Flanders enjoys a nice piece of bread with water on the side for dipping See them in The Simpsons.
It turns out breaking open an ancient cursed statue will do funny things to a girl like Enchantress. See them in Suicide Squad.
Bob Parr is an ex-superhero now focused on being a dad, but he misses the action. See them in The Incredibles.
Mother Gothel is a great mother as long as you never, ever, break the rules. See them in Tangled.