Credited Scientists / Doctors in the episode:
Professor Ian Stewart of Warwick University
Professor John Janovy, Jr. of the University of Nebraska
Professor Lawrence Krauss of Case Western Reserve University
Professor Robin Murphy of the University South Florida
Professor Kevin Warwick of Reading University
Doctor James R. Baker, Jr. of the University of Michigan
Amanda Tapping says, "I play Lt. Col. Samantha Carter. Samantha is chief scientist and leader of an elite team called SG-1." Sam gave up command of SG-1 in order to pursue scientific concerns and never re-assumed leadership after Lt. Col. Mitchell was given command of the team.