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