Character Recommendations Based on Sheldon J. Plankton
Robin Scherbatsky How I Met Your Mother

This former teen pop star loves dogs and is scared of relationships
Derek Morgan Criminal Minds

A guy you want to have your back when it counts most
Linda Belcher Bob's Burgers

Devoted mom and wife who loves singing, small talk, and booze
Brian Griffin Family Guy

A wry, sophisticated, struggling writer who also just so happens to be a dog
Sabrina Spellman Chilling Adventures of Sabrina

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

An everyday earthworm turned intergalactic hero
Caitlin Snow The Flash

Caitlin believes that burying herself in science is the best way to save the day or to mend a broken heart
Aslan The Chronicles of Narnia

Part king, part guardian, part savior
Marie Laveau American Horror Story: Coven

Take heed: There's no one more vengeful than a double-crossed voodoo queen
Carl Grimes The Walking Dead

Growing up is hard. Growing up in a zombie apocalypse is even harder