The Serpent Crown is a fictional mystical power object appearing in American comic books published by Marvel Comics. It was created by writer Roy Thomas and artist Marie Severin, and first appeared in Sub-Mariner #9.

Namor McKenzie, also known as Namor the Sub-Mariner, or simply Namor, is a character appearing in American comic books published by Marvel Comics. Created by writer-artist Bill Everett for comic book packager Funnies Inc., the character first appeared in Motion Picture Funnies Weekly #1 (uncirculated). Namor first appeared publicly in Marvel Comics #1. It was the first comic book from Timely Comics, the 1930s–1940s predecessor of Marvel Comics. During that period, known to historians and fans as the Golden Age of Comic Books, the Sub-Mariner was one of Timely's top three characters, along with Captain America and the original Human Torch. Moreover, Namor has also been described as the first comic book antihero.