Angel Diamond-Bluesmith is the mother of Sia Sapphire and an ally of the heroes who appears rarely. She serves as the Aura Energy Guardian of the Light Element, the first guardian in thousands of years as a matter of fact. With her element, she used her light to become the seal that imprisoned NightDusk shortly after Sia was born.
- It is shown that Noah finds her attractive in Real Life of Heroes.
- He later calls her "mom-of-steel" referring to her infinite patience with him, Sia and "Big Boss".