Jean-Claude Mézières was a French bandes dessinées artist and illustrator. Born in Paris and raised in nearby Saint-Mandé, he was introduced to drawing by his elder brother and influenced by comics artists such as Hergé, Andre Franquin and Morris and later by Jijé and Jack Davis. Educated at the École nationale supérieure des arts appliqués et des métiers d'art, he worked upon graduation as an illustrator for books and magazines as well as in advertising. A lifelong interest in the Wild West led him to travel to the United States in 1965 in search of adventure as a cowboy, an experience that would prove influential on his later work.

Bandes dessinées, abbreviated BDs and also referred to as Franco-Belgian comics, are comics that are usually originally in French and created for readership in France and Belgium. These countries have a long tradition in comics, separate from that of English-language comics. Belgium is a mostly bilingual country, and comics originally in Dutch are culturally a part of the world of bandes dessinées, even if the translation from French to Dutch far outweighs the other direction.