Twelve

The Twelve are a collection of twelve sentient beings no longer within corporeal forms that have merged together to create a hive mind spectral entity that uses the Zodiac signs as the monikers for each personality. They seek a lifeform to inhabit in order to house them. Driven insane by their fusion, most of the Twelve are malicious psychopaths who wish to spread discord when they attain material form.

History
It is unknown how these creatures lost their bodies, whether they died or involved in some accident, and it is never even revealed. The Twelve themselves apparently have been like this for so long that they forgotten most of their past lives. Their fusion is also a mystery but the reason does not seem to concern them anymore.

The Ram
Aries

The Bull
A Hoix and the only one of the Twelve unable to speak coherently and represents the sign Taurus. Not really a personality, more of a ravenous creature who just wants to maim and kill - then eat what is left. The host's eyes turn red when this personality unveils itself. Some words tend to be made amidst its growling and roaring, like 'Feed!' and 'Kill!'. The Bull also

The Twins
Gemini

The Crab
Cancer

The Lion
Leo

The Goat
Capricorn

The Leviathan
Pisces

The Youth
Virgo

The Scorpion
A Silurian male that represented the sign Scorpio. Became the Scorpion due to him being the only one from a species that was venomous. When he is dominant, the host's eyes turn purple and her voice hisses and goes very high-pitched. While not nearly as sadistic as some of the others, he is the most erratic with his awkward inflictions and mood swings.

The Beast
Sagittarius

The Siren
Aquarius

The Balance
An unknown male creature who was the only benevolent personality, and represented the sign Libra. Repressed by the madness of the others, the Balance lay asleep within the chaotic mass that made up his fellow personalities. He was the only one to make the other eleven docile and calm. The Rippers manage to use their host's memories to make the Twelve actually feel empathy, which released the Balance and had the Twelve leave the girl's body.