Pikachu

Pikachu, is Ash's best friend, and is a friend to Jaden, and Pooh. Pikachu is classified as the Electric Mouse Pokemon that delivers powerful shoking attacks when he battles.

Trivia

 * Jaden will first meet Pikachu in Jaden's Adventures of Pokemon the First Movie.
 * Jeffrey has a Pikachu, which is one of the founding members of the Jeffrey & Friends' Adventures team.
 * The attacks that Jeffrey's Pikachu knows are Thunderbolt, Thundershock, Iron Tail and Focus Punch.