An evil alien woman in a partnership with Dr. Jacques von Hämsterviel to get the Neo-PowerChip that is inside of Stitch. Delia altered a majority of the experiments, which had caused them to become physically stronger and evil, and Angel, who is rescued by Stitch. Delia usually calls Dr. Jacques von Hämsterviel the wrong name such as Hamu Sama or Hämusta Sama and then, when Hämsterviel's plans go wrong, she eventually punishes him based on whatever scheme he used.