I know I might get bashed for saying this but, purely on looks alone, Taylor Swift would make a good Supergirl. She's 5' 10" and about the right age (not too young and not too old). I'm not actually suggesting she be cast since she's probably not a very good actress (I havent seen her act in anything) but like I said, she has a very good look for Supergirl, in my opinion verify Michael Turner-esque.