Initially working under the professional name Jeffery Scott, Campbell's first comics work was two pinups for the Homage Studios Swimsuit Special in 1993. His subsequent work for Wildstorm includes spot illustrations in WildC.A.T.S Sourcebook. and Stormwatch #0. Campbell went on to co-create the teen superhero team Gen¹³, which debuted in Deathmate Black (September 1993), before going on to star in their own five-issue miniseries in January 1994. The series was initially co-written by Brandon Choi and Jim Lee, but Campbell became a co-writer with issue #3. The team was eventually given their own regular ongoing series, which debuted in March 1995. Campbell was co-writer on the series until issue #18, and was the regular artist, leaving the book after issue #20 (June 1997). In 1998, Campbell, together with fellow comics artists Joe Madureira and Humberto Ramos, founded the Cliffhanger imprint as part of Wildstorm Productions. He launched his comic series Danger Girl through this imprint. The story, which followed the adventures of a group of female secret agents, made the most of Campbell's talents drawing well-endowed women and dramatic action sequences. The Danger Girl series has since generated a video game for the Sony PlayStation, as well as several comic spinoffs in the forms of limited series and one-shots that were drawn by different artists in the American comics industry. Most of these spin-offs featured story outlines from Campbell himself. In August 2005, Campbell published Wildsiderz, which he co-created with his Danger Girl writing partner Andy Hartnell. In February 2006, the 200th issue of Nintendo Power included a poster featuring prominent Nintendo characters drawn by Campbell in his unique art style, along with an interview whereby Campbell recalled his memories of the "Invent the Ultimate Video Game" Contest. That same year, Campbell provided a variant incentive cover for Justice League of America (vol. 2) #0, the first issue of Brad Meltzer's run on the title. In 2007, Campbell illustrated the covers to the Freddy vs. Jason vs. Ash six-issue limited series. Marvel Comics At the WizardWorld 2006 Comic Convention held in Los Angeles, Marvel Comics announced that Campbell signed an exclusive contract with the company, and to work on a Spider-Man series with writer Jeph Loeb. Between 2001 and 2013 Campbell did numerous covers for The Amazing Spider-Man, including issues 30 - 35 in 2001, 50 - 52 and 500 in 2003, and seven issues done sporadically from issues 601