[@Shurikai] The groups are all from the gamecube games. Here's some Bulbapedia stuff for it.

http://bulbapedia.bulbagarden.net/wiki/Cipher -Cipher
http://bulbapedia.bulbagarden.net/wiki/Team_Snagem -Snagem
Team Miror B doesn't have a page since they were a bit of a joke but he's an ex-member of Cipher and he wants to own all the Pokémon in the world. He seems to also be a traveling performer. All his Pokemon come from unknown places and he seems to have a knack for finding lost Shadow Pokémon. His only followers are Trudly and Folly but by now he's probably gained some more. I'm going to probably be Miror B but I don't know yet.