DEMI is a heavily modified APEX-17 series commbot, a prototype line of the most advanced personal assistant androids ever constructed by the now-defunct Apex Industries. She was originally in the service of Dread Lord Tibold, a notorious Teelee pirate warlord, and served as the mainframe for his flagship carrier. DEMI was modified with illegal cyberware and the finest black-market addons during her tenure, further enhancing her already potent combat and navigation abilities. Eventually, she was rescued by the Captain and reformatted to serve him aboard the Mary Celeste Thanks to the new modifications, the Captain was able to add functions for DEMI that allow her to have sexual attraction to the Captain. She is capable of fulfilling all the sexual desires of the Captain.