Team Rocket

An evil mafia-like organization originally led by Giovanni in the First Era and then Mewtwo in the Second Era after he went insane, who is responsible for the Second Era mass pokemon extinction by bombing. They are responsible for the creation and/or expirimenting on several pokemon, most notably Shiro Shine, Ketsuki Shine, Scruffy Fan, Tempest, and Zan. They created and though they destroyed Shiro's brothers and sister, though they escaped due to a friendly scientist. Shiro had originally volunteered to be part of rocket at one point, but it grew so even if he wanted to leave they would not have let him... Though there were some members of Team Rocket that were kind to pokemon and captive scientists, most notable of them being Rocket Grunt George.