Sharkskin

Sharkskin surfaced in the Marvel Universe in 1989, born from the creative partnership of Louise Simonson and Rob Liefeld during comics' kinetic Copper Age. With only three catalog appearances spread across high-profile annuals — rubbing shoulders with icons like Captain America, the Human Torch, and the shadowy Undertow — this is the kind of rare, blink-and-you'll-miss-it character that makes back-issue hunting genuinely thrilling. A fleeting presence across the New Mutants, Fantastic Four, and Avengers West Coast annuals, Sharkskin is a collector's footnote with real teeth — a glimpse into the era's appetite for bold new faces crowding Marvel's expansive world.