Just as many professional comicartists, Don started his career with drawing superheroes. In his case it was Marvelman, a comic based on Captain Martin and originally was called Captain Universe. But after the threat of a lawsuit, the editor changed the name in Marvelman.
Don Lawrence was one of the first artists working on Marvelman. Together with Noman Light and Denis Gifford he was involved with the creation of Britains first superhero. The comic was produced by the Gower Street Studio ownd by the legendary Mick Anglo. The company L. Miller & Son were the clients for which also comics like Daniel Boone and Davy Crocket was produced. Marvelman got his own weekly magazine and had two spin-offs called Young Marvelman and Marvelman Family.