Do you want to compare Callisto with Duplicate Girl? Discover the powers, weakness & weapons of Callisto and Duplicate Girl from Callisto Biography and Duplicate Girl Biography. Find out all about Callisto and Duplicate Girl.# Check out how is Callisto unique and distinct from Duplicate Girl. Discover their love interest, sidekicks, family tree and the movies and games list in which Callisto and Duplicate Girl have appeared. Find out everything about them here!