Pseudonym of Michel Regnier, who also published as Michel Denys and Louis Albert. He legally changed his name to Michel Greg in 1975.
The series for which Greg is best known, Achille Talon, began in 1963 in Pilote magazine, also the source of comics such as Asterix. Regnier became editor-in-chief of Tintin magazine in 1966 and remained so until 1974. He introduced a more adult genre, with less perfect heroes and more violence. He created some of his most famous series like Bruno Brazil and Bernard Prince in this period, and introduced artists like Hermann to the magazine. In 1975 he became literary director for the French publisher Dargaud and launched Achille Talon magazine.