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