Jessie and James

Jessie, James and Meowth (Japanese: ムサシ Musashi, コジロウ Kojirou, and ニャース Nyarth) are the primary antagonists from the Pokémon anime. They are a trio of members of the criminal organization Team Rocket. They are constantly on the trail of Ash Ketchum and his friends, fruitlessly trying to steal his Pikachu. Jessie is the most aggressive of the trio, while James is more submissive, but also very intelligent. Meowth is a specimen of the Pokémon species of the same name, and is unlike almost all other Pokémon in that he walks upright and speaks like a human. The trio has remained recurring antagonists throughout the anime, but have only been incorporated into two installments of the video game series that the anime is based on (the main series game Pokémon Yellow: Special Pikachu Edition and the puzzle spin-off game Pokémon Puzzle League).