That new assistant is Siobhan Smythe, a character comic fans know as the super-powered villain Silver Banshee. CBS has released promo photos from the episode showing Italia Ricci's civilian version identity Silver Banshee, who debuts in the upcoming Lexi Alexander-directed episode. The other photos feature the return of Non, the debut of Jeff Branson's Master Jailer (the episode's main bad guy) and some quality sister time for KAra and Alex.
“Truth, Justice and the American Way” – Supergirl does battle with the deadly Master Jailer (Jeff Branson), who is hunting and executing escaped Fort Rozz prisoners. Also, Cat hires a second assistant, Siobhan Smythe (Italia Ricci), who immediately tries to one-up Kara, and Kara and James disagree over the DEO’s methods, on SUPERGIRL, Monday, Feb. 22 (8:00-9:00 PM, ET/PT) on the CBS Television Network.
"Supergirl" airs Mondays at 8/7c on CBS.