Callisto is a 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 and the Morlocks. Jim Cheung, artist
Cover of The Uncanny X-Men #170. Art by Paul Smith.
Storm is a superhero appearing in American comic books published by Marvel Comics. Created by writer Len Wein and artist Dave Cockrum, the character first appeared in Giant-Size X-Men #1. Descended from a long line of African witch-priestesses, Storm is a member of a fictional subspecies of humans born with superhuman abilities known as mutants. She is able to control the weather and atmosphere and is considered to be one of the most powerful mutants on the planet, and one of the most powerful beings in the Marvel Universe.
Giant-Size X-Men #1 (1975) is Storm's first appearance. Art by Gil Kane and Dave Cockrum.
Interior artwork from Mutant X 1 (October 1998) Art by Tom Raney.