VIDEO : Kevin Smith Cast Daughter In 'Supergirl'

harley quinn smith supergirl season 2 Supergirl: Harley Quinn Smith to Guest Star in Kevin Smiths Episode The DC TV Universe is one that?s constantly expanding and introducing new faces into the fold, drawing from its rich backlog of DC comic book haracters and storylines. Whether it?s a guest appearance from former WWE wrestler Cody Rhodes on Arrow, Grey Damon as Mirror Master on The Flash or someone else within the universe entirely, there?s always a unique subject right around the corner to entice and entertain audiences.