It is revealed that the frames of Kara's glasses are lined with lead to help her control her x-ray vision.
Hank (J'onn J'onzz) is shown enjoying Chocos (a type of chocolate cookie). Alex indicates they are his favourite as he even eats them at 3am. In the comics, the Martian Manhunter (J'onn J'onzz) was once addicted to the fictional cookie Chocos.
Live-action debut of DC Comics character Jim Harper, the first of several characters to take on the alter ego of the Golden Age vigilante The Guardian. He was created by Jack Kirby and Joe Simon, also the creators of Marvel's Captain America.
Dean Cain (Jeremiah Danvers) previously played Clark Kent/Superman on Lois & Clark: The New Adventures of Superman (1993).