Grey’s Anatomy alumna Chyler Leigh and David Harewood (Homeland) have been cast opposite Melissa Benoist and Calista Flockhart in the CBS pilot Supergirl, written by Greg Berlanti, Ali Adler and Andrew Kreisberg.

Based on the DC Comics characters, Supergirl — from Warner Bros. TV and Berlanti Prods.  — centers on Kara Zor-El (Benoist). Since arriving on Earth, the Krypton-born Kara has been hiding the powers she shares with her famous cousin, Superman. But now at age 24, she decides to embrace her superhuman abilities and be the hero she always was meant to be.

Leigh plays Alexandra “Alex” Danvers, Kara’s confident foster sister. Fascinated by Kara’s powers from a young age, Alex developed a lifelong obsession with science which inspired her to become a doctor.

Cyborg_Superman_h003Harewood plays Hank Henshaw, a onetime CIA agent who now runs the Department of Extra-Normal Operations, which tracks extraterrestrial threats on the planet Earth. In the DC Comics universe, Henshaw is a villain who eventually becomes Cyborg Superman.

Leigh is with UTA and Burstein Co. and Stone Meyer;  Harewood is with APA, Conway van Gelder Grant and Authentic Talent & Literary Management.