Supergirl Cast Answer Fan Questions at Comic-Con

Young Hollywood hits up the cast of The CW's "Supergirl" at Comic-Con with some fan questions! Katie McGrath dishes on Lena and Kara's relationship, Mehcad Brooks gushes over his Guardian costume, Chyler Leigh reveals what side of Alex she would like to see explored more, and Jesse Rath tells us what's in store for Brainiac-5!