Chyler Leigh & David Harewood Join ‘Supergirl’ Cast

CBS and DC Entertainment have announced that actress Chyler Leigh (Grey's Anatomy) and David Harewood (Homeland) have joined the cast of 'Supergirl.'  Leigh will play Kara's foster-sister Alexandra "Alex" Danvers. Fascinated by Kara’s powers from a young age, Alex developed a lifelong obsession with science, which inspired her to become a doctor. Harwood will play supervillain Hank Henshaw, a onetime … Continue reading Chyler Leigh & David Harewood Join ‘Supergirl’ Cast