CBS Casts Glee's Melissa Benoist as Supergirl 

star: Damon and Elena have earned a moment of happiness

Benoist will play Kara Zor-El, an alien from Krypton who escaped to Earth during her home planet\'s destruction. Since arriving on Earth, Kara has hid her powers, but now at 24, she decides to become the superhero she was meant to be.

\'s Greg Berlanti will write and executive-produce the one-hour drama with Ali Adler. Sarah Schechter will also executive-produce.

opposite Al Pacino, Annette Bening and Jennifer Garner.

video: Damon and Elena have earned their happiness

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