Seer was a terran who lived in "the Gutter," employed by the crime lord Fagin, though answered to his lieutenant Markus Ralian.
When Fagin called his followers to defend his HQ from Nova, Ralian assigned Seer, along with Diva and Preach, to round up hab addicts for the defense.
DeCandido, Keith R. A. (November 28, 2006). StarCraft: Ghost: Nova. Simon & Schuster (Pocket Star). ISBN 0-7434-7134-2