Callisto

Here Callisto is depicted as a less-violent, more even-tempered leader of the Morlocks. She first appeared to sabotage a beverage company where its beverage is revealed to be poisonous to mutants. She later returned when anti-mutant thugs were using laser technology to attack the X-Men, Spyke, and Leech. Callisto inspired Spyke with her advocacy of living a more peaceful life underground, within the tunnels for those mutants who fear to live with humans because of the violence against their race. Callisto acts as their leader and cares about her members - especially for Torpid who is only a kid. When the humans decided to attack Morlocks they found above ground, Spyke gets them fight back. The Morlocks, including Callisto, fought against the humans until the conflict was resolved by the powers of Leech.

Origin
Callisto's origins are unknown, although she has claimed that the scars she bears are proof of "how dumb a mistake" it was for her to try to live among normal humans; in one of her earlier appearances, her greatest psychological fear is the image of the beautiful woman that she once was, although she may have overcome that as of the present.

Power and Abilities
Callisto had heightened strength and reflexes, and also possessed enhanced senses of sight, smell, taste, hearing and touch. She later developed a mutant tactical ability, and was able to immediately intuit the solution to any tactical problem, be it a particular circumstance or an opponent. She was classified as a delta level mutant.

Even without her powers, Callisto is an excellent tactician, huntress and tracker, and a very formidable and capable leader. She is skilled in virtually every form of hand to hand combat known, and is also adept in the use of knives, which she frequently employs.