Chasing Life's Italia Ricci Cast in Supergirl

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.

One of the first villains of the post-Crisis on Infinite Earths Superman, Silver Banshee has the ability to control and manipulate sound and sonic energy. After Flashpoint, the character was retooled somewhat and made into a Supergirl villain.

"We are so excited to be working with Italia," said executive producer Andrew Kreisberg. "We've been a fan of her work for years and we cannot wait to see her take on this iconic comic book role."

Ricci has long been just a degree of separation from Andrew Kreisberg's DC Universe: she's been in a relationship with Robbie "Firestorm" Amell for nearly a decade, and has been actively supporting his and his cousin's shows on The CW.

Supergirl returns on Monday at 8 p.m. ET/PT on CBS with a game-changing episode.