Callisto is a fictional character appearing in American comic books published by Marvel Comics and is associated with the X-Men. She is the leader of New York City's subterranean mutant settlement the Morlocks, until losing that post in a duel against Storm. Storm subsequently leaves the group in Callisto's care as her representative, and the two eventually form an uneasy alliance. Callisto appeared in the 2006 film, X-Men: The Last Stand, played by Dania Ramirez. Publication history Created by writer Chris Claremont and artist Paul Smith, she first appeared in The Uncanny X-Men #169 (May 1983). Fictional character biography Callisto's origins are unknown, although she claims 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. Morlocks Callisto takes up residence in an abandoned Cold War-era bomb shelter hidden within the sewers. Under untold circumstances, she meets Caliban, a mutant whose power is to sense the presence of other mutants. She decides to make the bomb shelter a sanctuary for mutants like herself, using Caliban's power to track down such mutants. She calls this newly formed society the Morlocks, after the group of futuristic subterraneans known as Morlocks in The Time Machine by H.G. Wells. Callisto kidnaps Angel, intending to make him her mate. Kitty Pryde is struck with a deadly illness in an attempt to rescue him, and Callisto refuses to allow her companions to take her to the surface for medical treatment. To rescue Kitty, Storm challenges and beats Callisto in a duel for the leadership of the Morlocks. As the new leader of the Morlocks, Storm decrees that they would no longer kidnap and terrorize surface-dwellers, and in return they would have peace. The confrontation between Callisto and Storm leaves both parties consumed with hatred for each other. Callisto attempts to take revenge on Storm by manipulating Kitty Pryde into marrying Caliban, but is foiled when Caliban releases Kitty from their betrothal. When the wizard Kulan Gath enslaves and ensorcells the city of New York and transforms it into a Hyborian Age city, Callisto becomes his warrior servant. She battles Storm again, but Storm saves her life. Callisto helps defeat Kulan Gath, and as a result Callisto and her allies find themselves on