The Harbinger is a superheroine appearing in publications by DC Comics. Created by Marv Wolfman and George Pérez, she first appeared in her civilian form in The New Teen Titans Annual #2 before taking on the mantle of Harbinger in Crisis on Infinite Earths #1.

Supergirl is the name of several fictional superheroines appearing in American comic books published by DC Comics. The original, current, and most well known Supergirl is Kara Zor-El, the cousin of superhero Superman. The character made her first appearance in Action Comics #252 and was created by Otto Binder and Al Plastino.