Supergirl has cast Jesse Rath in the recurring role of Brainiac 5 according to the report coming from TV|Line. Who is Brainiac?

Half computer, half organic life and boasting a 12-level intellect, Brainiac 5 is a member of the Legion of Super-Heroes who travels to National City from the 31st Century to help Supergirl and the DEO battle Reign, the villain that L-Corp CEO Samantha Arias (played by Odette Annable) is on track to becoming.

There has also been speculation that a possible love triangle between Brainiac, Kara (BraKar?) and Mon-El – it’s a battle of the ships! <g> How do we know there may be some romantic tension?

Executive producer Andrew Kreisberg previously teased, “Someone down the road will like Kara a lot, which will be a lot of fun.” 

Stay tuned!