Sandro Zemolin began his career working with Giorgio Cavazzano. In 1972-73 and 1975-76, he inked several of Romano Scarpa's Disney stories. He also assisted Scarpa on his animation work. In the early 1980s, he pencilled some 'Uncle Scrooge' and 'Daisy Duck' stories for Topolino, before he became the inker of Giorgio Cavazzano's stories for the French publisher Edi-Monde, among others the comic adaptation of 'Basil from Baker Street'. Zemolin has also drawn 'Pif le Chien' in Pif Gadget.