High Quality Content by WIKIPEDIA articles! Ultimate Captain America (Steve Rogers) is a fictional comic book superhero appearing in books published by Marvel Comics. He is an alternative version of the mainstream Marvel continuity Captain America that appears in Marvel`s Ultimate line of books. The character first appeared in The Ultimates #1 (March 2002), and was created by writer Mark Millar and artist Bryan Hitch (based upon the original version of the character by Joe Simon and Jack Kirby).