Jan is the pseudonym of Juan López Fernández (born 13 March 1939), Spanish comic book writer and artist, most famous for his creation Superlópez.
He was born in the town of Toral de los Vados, in the province of León. Completely deaf from the age of six, his parents encouraged him to draw and in 1956, he began to work in a studio in order to learn animation.
He emigrated to Cuba in 1959 where he worked in Televisión Cubana (Cuban Television) and the Instituto Cubano de Arte e Industria Cinematográficos (ICAIC) (Cuban Institute of Cinematographic Art and Industry). He also collaborated on some periodicals for children at this time, and later on, on actual comic books and newspaper supplements.
Jan returned to Spain in 1969, and worked in the now defunct publishing house Editorial Bruguera until 1985 where he helped illustrate the work of other comic book artists.
In 1973, however, Jan created Superlópez, a parodized version of Superman. It was a series that began as a single page and later expanded into full albums, with adventures involving supervillains and criminal organizations. It also dealt with issues affecting contemporary Spain, namely the illegal drug trade, the transition to democracy post General Franco, etc.. The stories had originally been written by Efepé (pseudonym of Francisco Pérez Navarro), but Jan later took over this duty as well.