According to The Hollywood Reporter, actress Italia Ricci (Chasing Life) has been cast in the role of  DC Comics villain Siobhan Smythe, aka Silver Banshee.

Ricci will make her debut in episode 14 as Smythe, “Cat Grant’s (Calista Flockhart) latest hire who initially becomes a work nemesis for Kara (Melissa Benoist). However, she later proves a more deadly foe for Supergirl when she takes on the mantle of Silver Banshee.”

“We are so excited to be working with Italia,” Executive producers Andrew Kreisberg said in a statement. “We’ve been a fan of her work for years and we cannot wait to see her take on this iconic comic book role.”   

Silver Banshee is traditionally a Superman villain, but in recent years has proven to be a far more natural—and frightening—foe for his cousin, Supergirl. In the first year of The New 52, which reset the character’s continuity, she was introduced as a young woman from Dublin and was the only one who could understand the Kryptonian-speaking Kara. The two became friends up until Siobhan followed in her criminal father’s footsteps to become the Silver Banshee. – via DC Comics

Synopsis:

SUPERGIRL is an action-adventure drama based on the DC Comics character Kara Zor-El (Melissa Benoist), Superman’s (Kal-El) cousin who, after 12 years of keeping her powers a secret on Earth, decides to finally embrace her superhuman abilities and be the hero she was always meant to be. Twelve-year-old Kara escaped the doomed planet Krypton with her parents’ help at the same time as the infant Kal-El. Protected and raised on Earth by her foster family, the Danvers, Kara grew up in the shadow of her foster-sister, Alex (Chyler Leigh), and learned to conceal the phenomenal powers she shares with her famous cousin in order to keep her identity a secret.

Years later at 24, Kara lives in National City assisting media mogul and fierce taskmaster Cat Grant (Golden Globe Award winner Calista Flockhart), who just hired the Daily Planet’s former photographer, James Olsen (Mehcad Brooks), as her new art director. However, Kara’s days of keeping her talents a secret are over when Hank Henshaw (David Harewood), head of a super-secret agency where her sister also works, enlists her to help them protect the citizens of National City from sinister threats. Though Kara will need to find a way to manage her newfound empowerment with her very human relationships, her heart soars as she takes to the skies as Supergirl to fight crime.

Stars: Melissa Benoist as Supergirl, Mehcad Brooks as Jimmy Olsen and Lauren Benanti as Kara/Alura Zor-El, Calista Flockhart as Cat Grant, Chyler Leigh as Alexandra “Alex” Danvers, Jeremy Jordan as Winslow “Winn” Schott, David Harewood as Hank Henshaw, Dean Cain, Helen Slater, Peter Facinelli as Maxwell Lord, and Jenna Dewan-Tatum as Lucy Lane.

‘Supergirl’ airs Mondays at 8:00-9:00 PM, ET/PT on CBS.