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