Her Excellency, Chrisjen Avasarala is the Secretary-General of the United Nations. As Secretary-General she serves as both the head of state and government of Earth, and is the executive leader of the United Nations Security Council.

Frederick "Fred" Lucius Johnson was the Chief of Operations at Tycho Station's colossal mobile construction platform, overseeing the construction of space stations, the spinning up of asteroids, and in recent years the construction of mankind's first generational starship, the Nauvoo. A retired Colonel with the United Nations Marine Corps, Fred is notorious for his involvement in a UN military action that will live on in infamy. Since his disgrace he has sought solace and penance working to better the life of Belters all over the system. Fred is an outspoken advocate for the Outer Planets Alliance, a belter advocacy group who seek legitimacy, but are often accused of terrorism.

Commander Klaes Ashford was a Belter who served as First Officer aboard the OPAS Behemoth. He was appointed by Anderson Dawes, and served as second-in-command to Captain Camina Drummer.