 As well as Peyo himself, other contributors to the series included leading figures in the Belgian comics industry, such as Will, Jean Roba (who drew some of the covers when the series was published in "Spirou"), Gos, Yvan Delporte, François Walthéry and Albert Blesteau, many of whom were part of Peyo's studio.It initially lasted till 1978 when the success of the Smurfs prevented Peyo from working on his other series.Since his death in 1992, it has been restarted by his son Thierry Culliford and artist Pascal Garray.