After several years of working as a cartographer, he began working as a comic artist at Marvel UK, the Britain-based imprint of Marvel Comics. Larroca was working at Marvel UK when he contributed to Dark Angel and Death's Head II. At some point, Larroca began to work on mainstream North American comics, such as DC Comics' Flash. Afterwards, Larroca did a three-year run on Marvel Comics' Ghost Rider, during the mid-1990s. It was not until after his run on Ghost Rider, that Larroca would gain the exposure needed to become known as one of the most prominent comic book artists in The United States.