Melon is a female robot who showed up in Faye and Bubbles' new shop, Union Robotics, along with Arthur. She has a detachable ass, which was apparently lost in orbit for unexplained reasons. She paid for the shop's services in constructing a new ass for her, making her their first customer. She has melon-green hair and eyes.
Melon appeared in the background in strip, had breakfast with Steve in and came to sit on Roko's floor in . Melon's job is shown in . In we find that she lives in the same building as Elliot, and "just sort of wanders around."