User blog:Rafe Adler/What character would you like to see appear in the Arrowverse

With the recent addition of Constantine into the Arrowverse. I began to think about characters that would be great to see on Arrow, Flash, or Legends of Tomorrow. I thought about characters like Batman and Superman (even though they will never appear). What characters would you like to see? Tell me below. You can say any character your mind can think of. You can even say Hulk if you want to, but Ollie would probably prefer not to have any other green heroes in Star City.