Slug

Ulysses X. Lugman is a Miami-based drug lord whose extreme obesity proves a grotesque asset — his layers of fat make him nearly impervious to physical attack, and he can suffocate enemies within his folds of flesh. His gifted intellect drives his criminal empire.

Slithering out of the Copper Age in Captain America #324 (1986), Slug is a Marvel villain conjured by the legendary Mark Gruenwald and Paul Neary — a creative team who knew how to craft menace that lingers. Over a surprisingly durable run stretching across 35 years, this sinister figure has kept some genuinely dangerous company, sharing pages with the likes of Wolverine, Daredevil, and Matt Murdock across titles including Marvel Comics Presents, Dark Reign: The Hood, and Daredevil itself. With 33 catalog appearances and at least one collector-recognized key issue to his name, Slug is the kind of deep-cut Marvel villain that rewards the fan who digs past the headliners — a persistent piece of the Marvel underworld that refuses to stay buried.