Will o' the Wisp is a supervillain appearing in American comic books published by Marvel Comics. He is a physicist who gained control over the electromagnetic attraction between his body's molecules, allowing him to adjust his density. He is most often a foe of Spider-Man.

The Roxxon Energy Corporation is a fictional massive petroleum industrial conglomerate in the Marvel Universe appearing in American comic books published by Marvel Comics. The company is depicted as having been run by various executives who are typically ready and eager to use any underhanded and illegal option to secure profits, up to and including violent crimes. As such, Roxxon is a consistent opponent of various superheroes.