TV is getting its first transgender superhero. Channel24 reports Nicole Maines will star in The CW/Warner Bros.′ “Supergirl” as Nia Nal. Producers describe the character as a “young transgender woman with a fierce drive to protect others.” Maines is a transgender activist who won a discrimination lawsuit against her school. She sued the school for forcing her to use the staff restroom. Maine’s highest court ruled in 2014 that school officials violated state anti-discrimination laws.