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