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