The Guardians of the Universe are a race of extraterrestrial superhero characters appearing in American comic books published by DC Comics, commonly in association with Green Lantern. They first appeared in Green Lantern #1, and were created by John Broome and Gil Kane. The Guardians of the Universe have been adapted to a number of films, television programs, and video games.

Green Lantern is the name of several superheroes appearing in American comic books published by DC Comics. They fight evil with the aid of rings that grant them a variety of extraordinary powers, all of which come from imagination, fearlessness, and the electromagnetic spectrum of emotional willpower. The characters are typically depicted as members of the Green Lantern Corps, an intergalactic law enforcement agency.