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