Character Recommendations Based on Sheldon J. Plankton

Bill Cipher Gravity Falls

Inter-dimensional demon who dreams of a more chaotic Gravity Falls

Esmeralda The Hunchback of Notre Dame

Her street wisdom is unparalleled

Fear Inside Out

A ball of nerves. A voice of caution

Sabrina Spellman Chilling Adventures of Sabrina

Powerful, young, and ambitious witch who gets everything she wants

Robin Scherbatsky How I Met Your Mother

This former teen pop star loves dogs and is scared of relationships

Jack Skellington The Nightmare Before Christmas

A nightmare-man with a soft heart and smooth voice

Merry Brandybuck The Lord of the Rings

A troublemaking hobbit with a brave streak that some might call foolhardy

Amethyst Steven Universe

Reckless, outgoing, and always ready for fun

Jillian Holtzmann Ghostbusters (2016)

Holtzmann’s madcap mind is always whirring and she’ll transform anything into one of her machines

O-Ren Ishii Kill Bill vol. 1

Don't ask her questions unless you're fine with losing a limb