actually if we go by the comics, Ultraman is from earth 3, earth 2 is the golden age superheros.

@willbass86: the one flaw is the doctor did not reconize the master a little while back. yes he was in disguise as a human before u bring it up, so maybe also a regeneration gone bad or maybe in rivers favor?

the point was put across that River may be the Valyard, which is one I didn't think of but a cool link to the past. My idea is that she might be the master, remember he might be different now without the control of thge time lords, but still not quite reformed. Also the thought that he would marry himself (isn't the…