Because you like Bill Cipher in Gravity Falls

Nick Wilde is sly like a fox. And not just because he is one. See them in Zootopia.

Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.

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

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

For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.

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

There's nothing "demi" about this demigod's massive ego. See them in Moana.

Eugene H. Krabs is a greedy restaurant owner who won't let a dime out of the reach of his claws. See them in SpongeBob SquarePants.

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

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

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

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.