Along with Brian Michael Bendis, Mark Millar has been one of the key writers for Marvel Comics in the 21st century. After proving himself in the '90s as a talent to watch while writing for DC Comics and the UK comic 2000AD, his arrival to Marvel came at a time when Ultimate Spider-Man had just shot up the sales charts. It was in this environment that Millar made his first major contribution to Marvel with Ultimate X-Men, as Millar integrated forty years' worth of X-Men history, characters and lore into a solid two-year run, making the companion title to Ultimate Spider-Man every bit the creative and commercial success. Next up was The Ultimates, a new rendering of the Avengers that was to continue building on the success of the Ultimate line. He and artist Bryan Hitch pulled it all off in spades: The Ultimates and its sequel, Ultimates 2, were ensconced at the top of the sales charts every month; what's more, they were critical successes, as well. Meanwhile, Millar was invited to enter the regular Marvel Universe to take a stab at two of its most iconic characters: Spider-Man and Wolverine. Paired with industry heavyweights to draw his stories -- Terry Dodson on Marvel Knights Spider-Man and John Romita Jr. on Wolverine -- Millar brought the same fast-paced and cleverly constructed plots with which his Ultimate fans were already familiar. Amid building a small library of Millarworld indie comic books -- including the titles Chosen and Wanted, the latter of which was turned into a Hollywood blockbuster starring Angelina Jolie -- he managed to write Civil War, the epic seven-issue miniseries that definitively reshaped the landscape of Marvel's heroes. Kick-A**, a Marvel Icon project done in tandem with John Romita Jr., made an impressive impact on the sales chart before also being adapted for a major motion picture. In addition, Millar has reunited with Civil War artist Steve McNiven in both the pages of Wolverine and their creator-owned book Nemesis.