Angel (voiced by Tara Strong) is Experiment 624 of Dr. Jumba's Experiments.
She is designed to sing a siren song causes anyone who hears it (including rehabilitated experiments created before her) to turn evil. Also, when Angel's song is sung backwards, it will have the opposite effect (turning evil people and previous experiments to good).
Angel's song goes as follows: Acoota chi-meeto igatta no mootah, nagga to nala itume tidooka
English translation: Heed me, you are in my power. Henceforth, nothing shall be too cruel or too abominable for you. You cannot escape.
The lyrics of Angel's song when sung backwards are as follows: A-koo dite mutia-la no taga, nah toom onta tagito teemicha tooca Angel is also shown to be highly athletic and skilled with karate. She can use her antennae as prehensile limbs, and uses them to reach distant objects or operate mechanisms.
Like Stitch, Angel has pads on her hands and feet that produce a sticky stubstance which lets her scale walls and ceilings, a very flexible skeletal system, allowing her to put her feet into her mouth and roll into a ball, and retractable claws on her front and back paws, but unlike Stitch, she lacks an extra pair of retractable arms. She's strong enough to shatter the sealed glass containers that experiments had been captured in by headbutting them; however, the true extent of her strength is unknown. Angel depends mostly on laser-whips/swords, but is also capable physically with acrobatic reflexes and antennae. She is naturally heat resistant to toxins and extremely durable. She can swim, unlike Stitch, but she has no means of underwater breathing.
- Angel is Stitch's girlfriend.
- Angel is a parody of Lorelei the Siren, as her song is an evil in the guise of beauty, much like the Sirens of ancient myth.
- Angel's one true place is with Lilo and Stitch as a pop star and singer.
- In the Thunderbolts Adventure Series, Mephisto and Praxina are immune to Angel’s song just like Reuben and Stitch.