Roy Thomas was the FIRST Editor-in-Chief at Marvel—After Stan Lee stepped down from the position. Roy is a longtime comic book writer and editor. Thomas has written comics for Archie, Charlton, DC, Heroic Publishing, Marvel, and Topps over the years. Thomas currently edits the fanzine Alter Ego for Twomorrow's Publishing. He was Editor for Marvel comics from 1972-1974. He wrote for several titles at Marvel, such as Avengers, Thor, Invaders, Fantastic Four, X-Men, and notably Conan the Barbarian. Thomas is also known for his championing of Golden Age comic-book heroes—particularly the 1940s superhero team the Justice Society of America—and for lengthy writing stints on Marvel's X-Men and Avengers, and DC Comics' All-Star Squadron, among other titles. Also a legendary creator. Creations include Wolverine, Carol Danvers, Ghost Rider, Vision, Iron Fist, Luke Cage, Valkyrie, Morbius, Doc Samson, and Ultron. Roy has also worked for Archie, Charlton, and DC among others over the years.

Stan Lee (born Stanley Martin Lieber) was an American writer, editor, creator of comic book superheroes, and the former president and chairman of Marvel Comics. With several artist co-creators, most notably Jack Kirby and Steve Ditko, he co-created Spider-Man, the Fantastic Four, Thor as a superhero, the X-Men, Iron Man, the Hulk, Daredevil, the Silver Surfer, Dr. Strange, Ant-Man and the Wasp, Scarlet Witch, The Inhumans, and many other characters, introducing complex, naturalistic characters and a thoroughly shared universe into superhero comic books. He subsequently led the expansion of Marvel Comics from a small division of a publishing house to a large multimedia corporation.

Jerome "Jerry" Siegel, who also used pseudonyms including Joe Carter, Jerry Ess, and Herbert S. Fine, was the American co-creator of Superman (along with Joe Shuster), the first of the great comic book superheroes and one of the most recognizable icons of the 20th century. He and Shuster were inducted into the comic book industry's Will Eisner Comic Book Hall of Fame in 1992 and the Jack Kirby Hall of Fame in 1993.