Calista Flockhart (Ally McBeal) is reuniting with Brothers & Sisters executive producer Greg Berlanti to co-star opposite Melissa Benoist (Glee) in the upcoming CBS  series Supergirl.  Flockhart will play Kara’s boss Cat Grant.

Described as J.Lo by way of Anna Wintour, Cat is the self-made founder of CatCo, a media empire that includes a global magazine and websites in multiple spheres. Having started her career as a reporter, she has the media savvy of Kim Kardashian with the entrepreneurial knowledge of Facebook’s Mark Zuckerberg.  Kara serves as Cat Grant’s personal assistant and it’s not an easy job.

Other Supergirl series regular roles still to be cast include Kara’s science-minded foster sister Alex, her CatCo colleague Wynn Schott, and Hank Henshaw, the Supergirl-obsessed director of the DEO (Department of Extra-Normal Operations).