A former crew member of the Wanderer, Calthin was recalled by Nekta command to serve as the primary diplomat to the Jatam. The Empress herself chose him for the role, taking into account his standing with both Nekta command and the Jatam.
He also commands the fourth fleet, made up of Jatam, Nekta, and AI forces. His fleet is frequently in charge of testing new tactics and weaponry. The most successful of these thus far have been the new scatterpod and smartfeed combat frame.