The Vision is a superhero appearing in American comic books published by Marvel Comics. Created by Roy Thomas and artist John Buscema, the character first appeared in The Avengers #57. The Vision is loosely based on the Timely Comics character of the same name who was an alien from another dimension. The character is an android built by the villainous robot Ultron created by Hank Pym. Originally intended to act as Ultron's "son" and destroy the Avengers, Vision instead turned on his creator and joined the Avengers to fight for the forces of good. Since then, he has been depicted as a frequent member of the team, and, for a time, was married to his teammate, the Scarlet Witch. He also served as a member of the Defenders.

Roy William Thomas Jr. is an American comic book writer and editor. He was Stan Lee's first successor as editor-in-chief of Marvel Comics and possibly best known for introducing the pulp magazine hero Conan the Barbarian to American comics. 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 The Avengers, and DC Comics' All-Star Squadron, among other titles.