A pro with a very specific skill set. He turned into a mutinous maggot and began leading a revolt of sorts against the overlords but that was a long time ago.
He and his kind know exactly how to handle pros still loyal to the elites since they share the same experience and training. Turn or burn like the Bikers say, everybody has decisions to make. He is part of Thumper's freak show. Counterintelligence is not all fun and games.