This is the Team Rocket from Pokémon Yellow Gamma Yγ
Team Rocket (Japanese: ロケット団 Rocket-dan, literally Rocket Gang) is a villainous team in pursuit of evil and the exploitation of Pokémon. They are based in the Kanto and Johto regions, with a small outpost in the Sevii Islands.
While its main focus is stealing or capturing rare and strong Pokémon, and subsequently selling them, it also funds and conducts cruel experimental research on Pokémon. Their oath, as posted on the wall of one of their many bases, is "Steal Pokémon for profit. Exploit Pokémon for profit. All Pokémon exist for the glory of Team Rocket." Their ultimate goal is to take over the world using Pokémon.
Jessie (Japanese: ムサシ Musashi) is a member of Team Rocket, more specifically part of a trio with James and Meowth, that follows Ash Ketchum and his friends around in the Pokémon anime, usually trying to steal Ash's Pikachu.
James (Japanese: コジロウ Kojirō) is a member of Team Rocket, more specifically part of a trio with Jessie and Meowth, that follows Ash Ketchum and his friends around in the Pokémon anime, usually trying to steal Ash's Pikachu.
Blank (Japasnese ブランク Blank ) is a new menber of Team Rocket and this is the right arm of Giovanni . Blank have not expression and this is modest and confident He masters Ghost pokemon This is why it is hard to beat (the first battle in Viridian Forest , you lose inevitably because there are big level difference (exept with cheat but does not change anything in the story !)
Giovanni (Japanese: サカキ Sakaki) was the head of Team Rocket, and served as the secretive Gym Leader of Viridian City's Gym, known officially as the Viridian Gym. He handed out the Earth Badge to Trainers who defeated him. As a Gym Leader, he specialized in Ground-type Pokémon, but his master plan includes collecting rare Pokémon of all types. He is the only character in the games to have the Trainer class Boss'FRLG/Rocket Boss'HGSS (Japanese: ロケットだんボス Team Rocket Boss).
Giovanni is available in Gym Leader Yγ