Because you like Grunkle Stan in Gravity Falls

Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.

Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.

Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

Just because he rules Hades, doesn't mean he can't be fun! See them in Hercules.

This master marksman may be a villain, but Deadshot's motives aren't quite as selfish as they seem. See them in DC Extended Universe.

The witty Aku would be an ideal dinner guest, if he weren't a demon. See them in Samurai Jack.

Sideshow Bob is a bitter ex-performer who was forced to do inhumane stunts for slapstick comedy. Now he's exacting revenge on his former boss, a clown. See them in The Simpsons.

This cannibalistic villain may be a loner, but Killer Croc doesn't have problems with self-confidence. See them in Suicide Squad.

Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.

Bolin is making jokes and pursuing fun and adventure. See them in The Legend of Korra.

Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.