Take a look @ new footage, plus images from The CW's upcoming "Supergirl" episode "Survivors", airing October 31, 2016, revealing M'gann M'orzz' (Sharon Leal), the 'last daughter of Mars':
"...'M'gann', one of the original 'Teen Titans', is a 'White Martian' who will appear in the 'Supergirl' episode 'Survivors'.
"In 'Survivors', an underground 'fight club' for aliens is run by the 'Justice Society' super-villain 'Roulette'..."
Created by Geoff Johns and Tony Daniel, the character first appeared in DC Comics' "Teen Titans" #37 (2006).
Click the images to enlarge and Sneak Peek 'Miss Martian'...