Roland Goossand, popularly known as Gos, is a Belgian comics creator who was a frequent collaborator of Peyo's and wrote several Smurf stories. Gos also wrote for the comic "Spirou" and launched his own comics titles in Belgium in the 1970's including "The Scrameustach."

Yvan Delporte is a Belgian comics writer, and was editor-in-chief of Spirou magazine between 1955 and 1968 during a period considered by many the golden age of Franco-Belgian comics. He is credited with several creative contributions, among these his collaborations with Peyo on The Smurfs, with René Follet on Steve Severin (1/2) and André Franquin with the creation of Gaston Lagaffe and the co-authorship of Idées noires.