Melissa Benoist's Supergirl is going to have a powerful baddie to worry about, as Canadian actress Italia Ricci has joined the cast of the CBS show as Siobhan Smythe, aka DC super villain Silver ...

The Banshee, or Bean Sídhe (her legend recently imbued by the popular film "The Banshees of Inisherin") is that female spirit of Irish folklore who heralds death by screaming, wailing, or shrieking.