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Does Lena Luthor Know Kara Is Supergirl?

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TV Line’s Matt Mitovich was full of scoops for various shows this week, and one of those scoops involved Supergirl.

In the Supergirl Season 2 season finale, it was revealed that Cat does indeed know that “Kiera” is Supergirl, but what about Lena? Does she have any clue?

“At the moment, Lena definitely thinks they’re two people,” Executive Producer Andrew Kreisberg told Mitovich as revealed in a post that went up today.

We will definitely be seeing more of Lena in Season 3 as Katie McGrath has been upgraded to series regular status for the new season. Good news for #NationalBestFriendsDay, right?

Supergirl returns with new episodes October 9 on The CW.

About the author

About the author

Craig Byrne

Craig Byrne has been writing about Superman TV since 1995, when the "Lois & Clark Krypton Club" launched. He founded KryptonSite.com in February 2001, becoming the first fan site for The WB/CW television series Smallville. He also wrote the Official Companion books for Smallville seasons 4-7 as well as the Smallville Visual Guide.

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There are 2 comments

  1. Corfy

    June 9, 2017

    Here is another related question (which has less of an impact on the show)… does Cat Grant know that Clark Kent is Superman? I’m guessing yes.

    • Matthew Markovich

      June 14, 2017

      Don’t think so. But she knows Supergirl and Superman are are cousins so she may have concluded from this that Clark could be. Guess we will have to wait and see. I think Lena is a smart girl and probably questions the Kara/Supergirl friendship.

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About KryptonSite

In a time before social media, Craig Byrne created KryptonSite as the ultimate fan destination for The WB/CW series Smallville which starred Tom Welling, Michael Rosenbaum, Kristin Kreuk, Erica Durance and more. In the decades since, KryptonSite has grown to cover newer Superman-related TV and movie projects while still always holding on to Smallville.

The web’s first source for Smallville news, continuing to cover Supergirl, Superman & Lois, the new Superman films and more!

Copyright © 2026 Craig Byrne & KryptonSite and the respective original authors of posts. Smallville, Kryptonite and other Superman-related items are the property of DC Comics. No infringement is intended.

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