Dipper posses by the Demon Bill Cipher, and knows as Bipper, from the episode 'Sock Opera'. Also I add so you can do a Mabel versión called Mabill.

Prompt:

Dipper: Bipper Pines, solo, 1boy, yellow eyes, yellow sclera, black pupils, slit pupil, brown hair, pale skin, darker nose, bags under eyes, blue and white baseball cap, pinetree logo, blue sleeveless jacket, red shirt, short sleeves, grey shorts, white socks, black shoes

Mabill: Mabill Pines, solo, 1girl, yellow eyes, yellow sclera, black pupils, slit pupil, long hair, brown hair, blushing cheeks, braces, pink hairband, pink sweater, shooting star logo, purple skirt, white socks, black shoes