Calista Flockhart cast in 'Supergirl' pilot

Ally McBeal star Calista Flockhart is returning to television in the forthcoming CBS pilot Supergirl.
The 50-year-old actress is set to star as the main character Melissa Benoist's boss, Cat Grant, according to Deadline.
Supergirl is based in the DC Comics character of the same name, a woman named Kara Zor-El (Benoist), who was born in Krypton, but escaped for Earth amid the planet's destruction. Kara keeps her powers a secret from her cousin Superman until she turns 24 and decides to use them for the greater good.
Flockhart is best known for her role as the title character in the legal drama Ally McBeal. She also played a lead role in the family drama Brothers & Sisters. Both shows aired on CBS. The actress' new superhero project will reunite her with Brothers & Sisters Executive Producer Greg Berlanti.