Who designed the original Pikachu species?

Atsuko Nishida designed the original Pikachu species. She created the character during development of the first Pokémon games after being asked to design an Electric-type creature that would evolve twice.

Nishida worked from guidelines supplied by the development team, including Pikachu's electrical nature and its place in an evolutionary line. She drew on the rounded forms of small mammals and gave Pikachu its distinctive ears, cheek sacs, and lightning-shaped tail. Ken Sugimori later finalized the design for the game's promotional artwork and the broader franchise.

The design changed over time. Early game artwork portrayed Pikachu as rounder and heavier, while later anime and game appearances gave it a slimmer shape. The change made the character easier to animate and created a more consistent look across media.

Ken Sugimori is often named in casual accounts because he finalized the artwork and became the most visible original Pokémon illustrator. However, the specific credit for creating Pikachu's original species design belongs to Nishida, making her contribution an important part of Pokémon's 30-year history.