Blue Shark

A creature of the mid-'90s Marvel waters, Blue Shark surfaced in 1994's Marvel Comics Presents #150, conjured by the sharp creative pairing of Ann Nocenti and Steve Lightle. This brief but intriguing Copper/Modern Age entry keeps wild company — sharing pages with the likes of Matt Murdock and the cast of Venom: Separation Anxiety — which hints at a character swimming in some genuinely dangerous Marvel territory. With only a handful of catalog appearances, Blue Shark remains a rare find, the kind of deep-cut discovery that reminds devoted collectors just how much uncharted life still lurks in the Marvel ocean.