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