The official character description : “Italia Ricci is joining the cast of Supergirl as Siobhan Smythe, Cat Grant’s latest hire who at first becomes a work nemesis for Kara. But she later proves a more deadly foe for Supergirl when she takes on the mantle of DC Comics villain, Silver Banshee.”
Italia Ricci debuts as Siobhan Smythe in the February 29 episode of “Supergirl”; the “Flash”crossover episode of the series airs on March 28 at 8 PM on CBS.
