Hyperion

Hyperion is a supremely powerful being who debuted as a villain opposing the Avengers, later revealed to be one of the Squadron Sinister — a team of superhumans created by the cosmic Grandmaster to battle Earth's mightiest heroes.

Few Silver Age creations have proven as fascinatingly durable as Hyperion — a Marvel powerhouse who burst onto the scene in The Avengers #69 in 1969, conjured by the legendary team of Roy Thomas and Sal Buscema. With ties to both the villainous Squadron Sinister and the storied Avengers, this character occupies a uniquely complex corner of the Marvel universe, keeping company with heavy-hitters like Captain America, Doctor Spectrum, Nighthawk, and the Whizzer across more than five decades of publication. Three of his appearances carry key-issue status, a mark of real collector significance, and his presence across titles like Marvel Two-in-One and Giant-Size Defenders speaks to a character who found his way into the thick of Marvel's most exciting storytelling eras. If you love the grand, ambitious sweep of Silver Age Marvel and characters whose moral compass has genuinely been tested, Hyperion is absolutely worth your attention.