Doctor Neo Periwinkle Cortex is a book character.
 Gavin and Rubin described Cortex to character designer Charles Zembillas as "[having] a huge head but a tiny body, he's a mad scientist, and he dresses a bit like a Nazi from The Jetsons"
 Cortex was originally envisioned as a self-aware video game character who was bothered by the clichs he embodied and addressed the audience throughout the game

