I intended the undercover agents in La Perdita and Berlin to be common people around the teams (a guy in Jake's bar... the janitor of the Berlin HQ... stuff like that), but re-reading my post I realized they could easily be team members, so if anyone wants to play that angle they're free to do it. They don't have to be evil, just loyal to the UN and unaware of Merlin's real personilty. I don't know if this fits in with what's been revealed about RoboSquirrel, Danny. It doesn't have to come out right now... I'm just throwing the idea out there in case anyone wants to pick it up.
