As an expert in the field of Metaphysics, Frost Mercury has long been a prominent name amongst the ranks of the Doctors, and now uses that influence to help steer the focus of their primate liberation efforts. Borne into the Doctor caste, Frost was taught to always seek ways to help others regardless of their differences, a core value that led to their interest in the Universal Primate Captivity Crisis. With their sights now set on Earth, Frost and the Doctors will do what they can to liberate the primates that remain in captivity there.