Neena Thurman, once the member of a top secret Government program to create luck through biological tissue, an immense failure now turned Mercenary.

Cortana, the UNSC's pride and Halsey's greatest invention of Battleship AI turned mobile was now rogue, creating destruction in her wake. She was the sole target of the UNSC, the very fate of humanity was in the balance.

UNSC AI Cortana, a well respected artificial intelligence and overall cunning.

Captain Carol Danvers, former USAF Pilot who crashed in an experimental aircraft who's core now empowers her.