An A.I. Robot created by Nathan Stark. Callister had a romantic relationship with Jo Lupo, but he fled town after Nathan's lab burnt down. When Callister finally returned home, it was revealed the fire was started by Nathan to protect him from being found out as a robot. Unfortunately, the only reason Callister returned home was to see his creator (and father figure), Nathan, before he died due to technical glitches. Show less «