In the Supergirl episode “Livewire,” while Kara Danvers (Melissa Benoist) gets a visit from her foster mom Eliza Danvers (Helen Slater, the original Supergirl!) for Thanksgiving, an accident transforms volatile CatCo employee, shock jock Leslie Willis, into supervillain Livewire, who’s donning an electric, super trendy “granny” hair color.
Leslie Willis/Livewire is portrayed by Brit Morgan. The 28-year-old actress from New Jersey has appeared on several TV shows including The Mentalist, Criminal Minds, Two and a Half Men, and Desperate Housewives, among others. Morgan is best known for her recurring roles on Graceland (Amber), True Blood (werewolf Debbie Pelt), and The Middleman (Lacey Thornfield). Supergirl airs Mondays at 8pm on CBS.