Caligulon Hertz (カリグラ・ハーツ, Karigura hātsu), usually called Caligula by his associates, is a Quincy in the Impero Nascosto army headed by Akujin. He was formerly part of the Vandenreich in the Stern Ritter division. But after the Vandenreich fell to the Soul Society, he left wandering the Reikai looking for new comrades to join up and fight with. It's been noted that he had a close association with the leader, as he was a higher-up that he deeply trusted to do the most important tasks. It's been also noted that he also had close a relationship with Andreas Nikolai, but when the organization fell, both went their seperate ways.