It is safe to assume that Bruce Wayne and Clark Kent belong to the same Universe. In the season 2 of T.V. show The Flash, Barry travels to a parallel Universe where he meets Kara Zor El a.k.a. ...
Robin is part of the DC animated universe, so why doesn't he appear in the Justice League or the follow-up Justice League Unlimited series? What is the reason behind not including any Robin or ...
What is "The Center" in Justice League: The New Frontier (2008)? From where did it come to earth?