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