In the last episode of "Supergirl," Hank Henshaw revealed his true identity as J'onn J'onzz, the Martian Manhunter, to Kara's sister Alex Danvers -- and it won't be long until Kara herself finds out, at least according to David Harewood. He offered a few details about the way Kara finds out his secret identity (via Entertainment Weekly).
"He actually pretends to be Supergirl," Harewood revealed. "She gets to see Supergirl for the first time, as Kara. It's quite a thing for her to see herself taking off and flying into the sky. It fills her with pride that there's this female superhero. She looks awesome."
"Supergirl" airs Mondays at 8 pm EST on CBS. Developed by producers Greg Berlanti, Ali Adler and Andrew Kreisberg, the series stars Melissa Benoist, Calista Flockhart, David Harewood and Chyler Leigh.