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