Nix

Nix Capelin is a valuable member of StarGate Inc., just because of all the knowledge he has of the world. He is quick-thinking and serious, but can turn himself into a Pokémon at will.
He is the current bearer of many Biometals, including all Model-2 Versions (Including W2, his original partner) and Model K. 
His transformation of choice is usually a Raichu wearing what is normally a black leather trench coat and a random black hat that he stole from Silas one time.