On the most recent episode of Supergirl, we learned that the creepy head of CADMUS that we’ve been seeing for a few weeks is actually Lena Luthor’s mom… which also makes her Lex Luthor’s mom. So, how does the reveal affect the show and the friendship growing between Kara and Lena? Executive Producer Andrew Kreisberg told EW.com:
You’re supposed to be left wondering how involved Lena is. We’ve seen that Lillian Luthor is somebody not to be messed with. She clearly wields a great deal of power and scientific know how. What exactly is her relationship with her daughter, and exactly how much Lena is involved with Cadmus, makes up part of the excitement factor for these next few episodes.