TV Line is reporting that Jesse Rath (Defiance) has been cast in the third season of Supergirl in the recurring role of Brainiac 5.A member of the Legion of Super-Heroes, Brainiac 5 is half-computer, half-organic and travels from the 31st Century to help Melissa Benoist’s Supergirl in her battle with Reign (Odette Annable). Rath is set […]