Take another look at the CGI on Lynda Carter's transformation, on Supergirl. While, the Martians are distinguished by red eyes, and that includes the 'white Martians', Lynda's character is distinguished by bluish white eyes and some kind of red, vein-like discoloration on the skin. For this reason, I don't think she is intended to be a Martian, but, something
else, entirely.
I think that, with a
Wonder Woman film being released, this summer,
Supergirl is going to cash in on its popularity by introducing
Circe, played by Lynda. Circe is orchestrating some kind of plot to take over the world, using mankind's hysterical fear or extra-terrestrials, that ultimately ends in her pitting aliens against mankind ..or something, like that. I also couldn't help noticing the familiar green of her scarf, a shade that we've often scene Circe wearing in the comics, ..but, there's an even bigger clue that Lynda might be playing Circe...
What's Lynda Carter doing, here? Especially...what's Lynda Carter doing on Supergirl in the same year that a WW film, the first WW film, comes to theatres? I think Lynda Carter is here, because of her association with Wonder Woman, and a storyline that will feature elements from the WW comics, like Circe ..or Donna Troy.
Of course, ..there's also
Maxima. Maybe, she's Maxima.