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