Gavin Smith is the Dundee-born author of the hard-edged, action-packed SF novels Veteran, War in Heaven, Age of Scorpio, and A Quantum Mythology, as well as the short-story collection Crysis Escalation. He has collaborated with Stephen Deas as the composite personality Gavin Deas and co-written Elite: Wanted and the shared-world series Empires: Infiltration and Empires: Extraction. He lives in Woking, UK.

Qarie Marshall has narrated over thirty series for the Discovery Channel and the BBC. He has also been a guest voice on Comedy Central's Drawn Together and has recorded BBC radio plays, the in-flight programming for Virgin Atlantic Airlines, over eighty video games for the PlayStation and Xbox, and numerous audiobooks. In 2007, he was made an Associate Artist of The Purple Rose Theatre.