Supergirl has been teasing big names from DC Comics from the very beginning. In the latest episode, the show finally introduced legendary supervillain Lex Luthor, but not in a way that many might have expected.
Supergirl has been teasing big names from DC Comics from the very beginning. In the latest episode, the show finally introduced legendary supervillain Lex Luthor, but not in a way that many might have expected.