Throughout the series,Supergirla range of strong villains. Most of the villains were either aliens or metahumans, as non-powered beings posed very little threat to the Girl of Steel. Lex Luthor was ...

Supergirl, much like every long-running superhero, has some pretty weird villains. From ancient classics like Reactron to new classics like Princess Shark, the Girl of Steel has faced down her fair ...