Martinex

Few characters can claim a Silver Age Marvel debut and still be making waves over five decades later, but Martinex is exactly that kind of enduring cosmic gem. Born from the imagination of Otto Binder and introduced in Marvel Super-Heroes #18 back in 1969, this crystalline figure emerged at a moment when Marvel was boldly reaching for the stars, and he's been part of the publisher's cosmic tapestry ever since. His adventures span Marvel Presents, The Avengers, and Guardians of the Galaxy, where he keeps remarkable company — sharing pages with the likes of Vance Astro, Nikki, Stakar Ogord, and even Captain America himself. With 73 catalog appearances, six of them collector-recognized key issues, and a publishing history stretching all the way to 2025, Martinex is the kind of character that rewards every fan who takes the time to seek him out.