Undersecretary of Executive Administration at the UN and Avasarala's nominal superior. The book's principal political antagonist on Earth: he orchestrates the secret protomolecule weapons programme with Jules-Pierre Mao and Admiral Nguyen, manoeuvres Avasarala out of the way by sending her to Ganymede aboard the Guanshiyin, and is finally outflanked when Souther's fleet and Avasarala expose the conspiracy.