True, unless they incorporate aspects of the prequels.^^ In the actual foundation books, the only Robots are humaniform.
In the original Foundation trilogy, there are no robots of any kind. It was only in the later books that Asimov retconned the Foundation and Robot universes into a single continuity and shoehorned a few humaniform robots into the Foundation era. So a movie based on the original trilogy shouldn't have any nonhuman characters of any kind.
Or "Tik Toks."


The studio is probably looking at it as a potential billion-dollar franchise like Star Wars or nuTrek, so definitely expect it to be brain dead.If Roland Emmerich is doing Foundation, expect it to be braindead.
He mostly left physical appearance to our imagination, except for some significant details. But I vaguely remember one sequence where one of the major characters-- and this was in one of the later novels-- mused about how people with brown skin are referred to as "Southerners" and wondered why. It may have been Pelorat in connection with his attempts to define the characteristics of Earth.And who says the characters have to be white? I don't think Asimov specified. That many millennia in the future, our modern ethnic categories probably wouldn't exist anymore anyway. It would be best to cast it with multiracial actors.