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