Otto Brown is a human who was employed by the Spacefarer's Intragalactic Commerce Guild as a chemist to work on an Expeditionary Research Facility on Prax.

Radicalized by what he saw, he assisted the Revolutionary Unions by turning on the SICG and producing bombs and other munitions for the revolutionary effort. Brown was later captured and imprisoned by the SICG.

Due to his expertise and status as a prisoner, Brown was an ideal candidate for the unpopular expeditions into the various rifts that had opened across the galaxy. Brown agreed to go on the missions on the condition that the SICG would lift their blockade on Prax upon his success.