True Age: Unknown

Appeared Age: Varies

DOB: Unknown

Race: Dark One

RPGs: TAW4 and Erevis the Progenitor

Weapon of Choice: Tricks

History:

Billy appeared before the team as a four year old Asian girl, and then proceded to battle the team with the full might of the Dark Ones behind her. After being defeated by the team, they spared her life, perhaps due to her guise as a child. Being given the name 'Billy' by Weapon II, Dias, Billy was taken in by Setsuna and Cassandra. However, despite being defeated and seemingly no longer an enemy, Billy has displayed amazing feats of powers, especially after the Dark Ones were completely defeated and she inherted their full power. Billy's abilities seem almost limitless, limited only by her imagination and whatever tricks she deems. She can shape shift and change her age and appearance at whim, complete with a wide array of attacks and abilities.

Billy has never really shown much desire to be a normal child, content to be a trickster who's goals are unknown to any - she comes and goes as she pleases, aiding the team when it suits her. So far no one has shown much concern that her ultimate agenda is a bad one, despite Billy saying she is completely evil. The only real times she has shown a shred of humanity has been in interactions with Setsuna, Cassandra, and recently Freyja, who has taken it upon herself to be part of the girl's life once she began to become unstable after Setsuna's death.

Eventually Billy put forth one of her plans - using Jennifer to get to a new reality, where she attacked that reality's Setsuna. She planned to destroy her soul, and put her own Setsuna's soul into her. However, the team stopped her, and then Freyja and Billy battled each other after Freyja stopped her. Billy unleashed her full rage on Freyja, and eventually Freyja began to act like she planned to seal Billy's powers, which Billy countered by destroying the soul she had come to have from Junior after Junior no longer needed it.

Freyja created a tree for Billy to regain her powers, having rooted it to herself. Billy seemed to hold no grudge against her for failing to bring back Setsuna, and once the Erevis team began to search for the Progenitor ship, she joined on for whatever reason. Her goals cannot be guessed, other than perhaps she wants the technology for herself, having made deals with Loki to get the team closer to it, until finally she got aboard. Recently she's started to show signs of using Light powers, though she refuses to disclose how. Her age reverts from a 6 year old to a 20 year old depending on her mood, and her plans. Is Billy evil? Or something else?