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