The Legion of Doom is a group of super-villains led by Lex Luthor that originated in Challenge of the Super Friends, an animated series from Hanna-Barbera based on DC Comics' Justice League. The Legion has since appeared in other animated programs, comic books, as well as the feature-length film Justice League: Doom. It is similar to the earlier Secret Society of Super Villains, and to the later Injustice League.
Alex Ross's art is unmistakable and unique. The Norman Rockwell of Comicdom.