On October 14, The CW will debut Supergirl character Dreamer, also known as Nia Nal, on the show's fourth season. What's more, the character will be portrayed by actress Nicole Maines, who is transgender herself. To put this in context, we sat down with Erika Abad, a gender and sexuality studies professor whose research and courses look closely at the nature of LGBTQ portrayal in film and television.