Vexen approaches problems like an intellectual, with a hypothesis and a method to test those hypotheses. Appearing very much like a typical “mad scientist”, Vexen views life as a grand experiment. More than any other member, save Xemnas, he considers his numerical rank a literal one and often derides members with lower numerical rankings than his. Vexen is often chastised by others for this behavior. Vexen is also cowardly and displays a fear of Xemnas, immediately bowing to Marluxia’s demand to destroy Sora when Marluxia threatens to tell Xemnas of the failure of the Riku Replica.