Boss’s background is unknown. She would talk all day about someone else, but would never reciprocate. She believed that to know where someone came from, you could know what they want and as soon as you know what they want, you can control them. She promised she would never be controlled.
She was born with red hair and red skin, but if she had any other mutations they were not readily apparent and she kept them secret.
Boss was gunned down by a cyborg during the raid on Center.