Because you like Bill Cipher in Gravity Falls

Kubo is a storyteller at heart who's tapping into his sense of adventure. See them in Kubo and the Two Strings.

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

Gene Belcher dreams of a future in the limelight, and he doesn't let his lack of talent hold him back. See them in Bob's Burgers.

Joe West is overprotective and secretive when his children are involved. See them in DC Extended Universe.

Rick Sanchez is a gruff, alcoholic mad scientist, with the emphasis on "mad." See them in Rick and Morty.

Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.

Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.

A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.

Kenny McCormick is a boy of few words who likes nudie mags, NASCAR, monster trucks, origami, and Peruvian pan flute bands. See them in South Park.

A ball of cheerful energy, Pinkie Pie is as sweet as her name suggests and lives to bring others joy with laughter and parties. See them in My Little Pony.

A malevolent dark wizard, Voldemort is so fearsome that he's known primarily as "He Who Must Not Be Named." See them in Harry Potter Series.

Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.