Hela Nemo is the daughter of Professor Nemo and the owner of the Botties Pit. When Connor first arrived in Bubble Town, she recommended that he tried to repair another robot besides Cubix, as nobody had yet been successful in bringing the damaged machine to life.
Hela served as a mentor to the younger Botties, offering her advice and expertise when required. The apparent death of her father only strengthened her desire to help people and robots; when she was reunited with the Professor she was understandably surprised and overjoyed to have him back.
Her wide array of technical knowledge has allowed her to create various defenses for the botties pit, including three levels of protection. Level 1 is a set of panels which can launch attackers away from the Pit and an electrified claw disguised as a wrench. Level 2 is a gun which can fire black spheres; it is unknown what kind of ammunition these spheres are, as they miss when they were used. Level 3 is an energy shield which can slow down intruders, but it can break if attacked hard enough.
Hela drives a large flying car which is the same shade of green as her sleeveless waistcoat. The vehicle is big enough to carry all of the Botties, plus a few other people.