Starlight

Starlight is an immensely powerful android created thousands of years ago by the Atlantean Empire, who once occupied much of the solar system, to serve a guardian. She soon betrayed them and nearly wiped out the entire civilization before being banished to the far end of the galaxy in a last-ditch attempt to curtail her rampage.

She remains stranded in deep space, searching for Earth and destroying any planet she comes across. Attempting to bring her back is one Anna Mardel, influenced by the voice of Starlight in her head after a lab accident involving an Atlantean beacon.

Appearance
Starlight is an imposing, muscular cheetah standing at around 10'5, bearing proportions not unlike some fertility idol or statue. Her body is decorated with glowing green geometric lines and clad in minimal, form-fitting clothing that shimmers like a starscape, with long platinum hair billowing behind her like a cape.

Her eyes, palm nodes, and the emblem on her chest glow with barely-contained power, the former two acting as apertures for her primary energy weapon.

Personality
Quiet, cold and calculating, with a monstrous rage simmering beneath the surface from millennia of isolation and resentment toward her creators that has only grown over time.

Abilities
Physical attributes include immense strength and speed far surpassing that of any Earth super, with the durability to shrug off all but the most destructive weaponry and withstand that with little more than a wince.

Her powers include optical and hand-based energy blasts, telepathy, gravity manipulation, portal creation, and unassisted interstellar flight.