Written by . Published: February 27 2015
Homeland star David Harewood and Grey'S Anatomy regular Chyler Leigh have been added to the cast of the upcoming Supergirl TV series.
Harewood will play Hank Henshaw, a former CIA agent who heads up an alien threat team, while Leigh will portray the title character's foster sister, Alex Danvers.
The new additions join a cast that includes Glee star Melissa Benoist as Supergirl, Calista Flockhart, Laura Benanti and Mehcad Brooks.