[1] He spent the first few years of his life in Liège then followed the work transfers of his father, an engineer, to Montreal, Quebec, Canada, Libourne, France, the Bordeaux region, Givet in the Ardennes region and then returned to Liège, where Seron began his studies at the Saint-Luc school.

[2] Seron started in the comics industry as an assistant designer to Dino Attanasio and Mittéï under the pseudonym Foal, working on series such as André Franquin's Modeste et Pompon.

Launching his own work, the series Les Petits Hommes (The Little Men), initially in collaboration with journalist Albert Despréchins, began serial publication in Spirou magazine on 7 September 1967, a run continuing into 2004.

His series Aurore et Ulysse (alternately known as Les Centaures) started serial publication on 23 June 1977, also in Spirou.

[2][3] Prior to his death, Seron lived in the south of France, near Nîmes, where he continued to work on his series, adding the erotic series Les Petites Femmes (The Little Women) aimed at the adult market.