ASTRA: When she was a child, Astra and her twin sister Alura took pleasure in confusing their parents. Later in life, Astra taught her niece, Kara, the names of the stars on various nights. Astra was later sentenced to imprisonment in Fort Rozz by Alura. After Fort Rozz crashed to Earth, Astra traveled with it as a prisoner. It crashed in a field, releasing all of the prisoners. From there, Astra led various of them through her subordinate, The Commander, in the hopes of seeking revenge on her sister, Alura. Astra is also played by Laura Benanti

For more info on Alura Zor-El, check out our partners at SupergirlWiki