Neptune

Neptune is the Olympian god of the seas in Marvel's mythology, ruling the ocean depths as a powerful deity. He has ties to both the Olympian pantheon and Atlantis, occasionally intersecting with characters like Namor the Sub-Mariner.

Ruling the depths of Marvel mythology, Neptune made a splash in the Silver Age when Stan Lee and Jack Kirby introduced him in Tales to Astonish #70 in 1965 — a cosmic pedigree that immediately signals this is a character with serious creative DNA behind him. Over a remarkable 46-year span, he has surfaced across titles including Hercules: Fall of an Avenger and the celebrated Marvel Masterworks: The Sub-Mariner collections, keeping distinguished company alongside Namor, Sub-Mariner, Bruce Banner, and the denizens of Marvel's underwater world. With two key-issue appearances to his name, Neptune may be a rare presence in the catalog, but rarity has its own allure — and for collectors who love the grand, mythological sweep of Marvel's Silver Age cosmos, tracking down his nine appearances is a deeply rewarding hunt.