After an education at the Institut Saint-Luc Liège, Didgé, pseudonym of Dider Chardez, teamed up with Julien Bouharmont (Julos) with whom he began a collective oeuvre. They did the series 'Changer la Vie' for the magazine of the Fondation André Renard, as well as the series 'Léon et Nicolas' in Tintin and some scriptwork for Paul Deliège's 'Bobo' in Spirou.
Solo, Didgé made several comics for Spirou (such as 'Isidore Landurcy') and he appeared in the magazine's legendary supplement Trombone Illustré with 'Les Ouvriers du Tarte'. In 1979, he had a brief appearance in À Suivre with 'Conclave'. In 1982, he started his most famous series, 'Monsieur Éduard', in Tintin. In addition, he began 'Les BB du BD' in Spirou. In 1991, he began the series 'Babs' at Lombard.
Monsieur Edouard (Kuifje #6, 1983)
In addition to his work as an artist, he wrote a great number of scripts for artists like Maréchal ('Prudence Petitpas'), Serge Ernst ('William Lapoire'), Dale ('Ptouih') and Renaud ('Platon, Torloche et Coquinette', later continued by Bruno Di Sano), most of which were published in Tintin.
In 1994, he created the erotic comic 'Le Cul et l'Écu' with Stibane in the BD Folies collection of P&T Productions. In the same register, Didgé and Stibane contributed to the third volume of 'Blagues Coquines' at Points Image under the pennames Bloody & Gutsy. Again with Stibane, he teamed up with Georges van Linthout to make 'Caméra Café', a series of comics based on the eponymous television series. In 2007 he teamed up with Marc Dugain to create 'La Malédiction d'Edgar' at Casterman. In 2008 he drew 'Durbuy La Plus Petite Ville du Monde', a comic about the history of Durbuy, the world's smallest city in the Belgian Ardens.