Celsus Zeren, a tenured purveyor of the Nursing Science field, has participated in several primate retrieval operations across the New Frontier and has now committed to their liberation efforts on Earth. A child of the Zealot caste of Apskellion Space Apes, Celsus was left behind in a conflict with the Doctors and was taken into their care and raised as one of their own, but waits for the day that they can break free and return to their own people. Now, with the fate of the Earth primates in the balance, Celsus has vowed to do what can be done to save them from their imprisonment.