Justice is a twelve-issue American comic book limited series published bimonthly by DC Comics from August 2005 through June 2007, written by Alex Ross and Jim Krueger, with art also by Ross and Doug Braithwaite. Its story involves the superhero team known as the Justice League of America confronting the supervillain team the Legion of Doom after every supervillain is motivated by a shared dream that seems to be a vision of the planet's destruction, which they intend to avoid.

Metallo is a supervillain appearing in American comic books published by DC Comics, commonly as an adversary of Superman. He is usually depicted as a cyborg with a kryptonite power source in his heart, which he uses as a weapon against Superman. In 2009, Metallo was ranked as IGN's 52nd-greatest comic book villain of all time.