Aren't you keen to compare Ultron The Riddler enemies & friends?Here we give you the chance to compare Ultron vs The Riddler enemies, rival teams, weakness, friends & group affiliations and find their allies and rivals. So go ahead and check out sorted comparison list of Ultron vs The Riddler enemies and friends. You can also check Ultron Enemies and The Riddler Enemies, where you can find their enemies, friends and group affiliations.