Indigo



Indigo is an alien cyber terrorist that attempts to wipe out the human race. Formerly known as Brainiac 8 she is associated with Braniac 1, the one that Superman often fights.

She has a history with Non and as the prisoner of Fort Roz that helped Kara make it out of the Phantom Zone and is also the one who allowed all Alien prisoners in the prison escape and run loose on Earth she serves as the tertiary antagonist in season 1 of Supergirl.

Trivia
Indigo is portrayed by Laura Vandervoort who played Supergirl in Smallville.