Neuvillette is the Iudex of Fontaine, and the leader of the Marechaussee Phantom. While Neuvillette upholds the rules of the court with utmost reverence, though he is quite aloof when dealing with human emotions and often distances himself from the public eye. Neuvillette takes the court and trials very seriously, having no bias to his judgment. He is notably perceptive, being able to hear whispers and is able to deduce the additional details from the evidence provided to him during a trial.