Colress

Colress (Archroma in Japanese) is the leader of Team Plasma in Pokemon Black 2 and White 2. He is a mysterious researcher that is researching strength of Pokemon. He is actually working for Ghetsis.

He is battled three times throughout the main game (at Route 4, World Tournament, Giant Chasm) after Team Plasma is defeated, he feels regret for his actions and intends to make amends. He is battled once more and gives the player a Master Ball.

He mostly uses Steel type Pokemon.