Walter Molino fulfilled his classical and academic education in Milan. He made his debut as an artist in the student magazine Libro e Moschetto in 1934. It was followed by two series of short-lived comic strips for the Del Duca publications L'Intrepido and Il Monello. In 1935, Molino created a series of political and satirical cartoons, published in Libro e Moschetto and in Il Popolo d'Italia. When the magazine Il Bertoldo was founded in 1936, Molino became one of its most talented contributors.
During the golden period, Molino drew strips like 'Zorro Della Metropoli', 'La Campagnia dei 7'. He created popular series like 'Virus, il Mago della Foresta Morta' and 'Captain l'Audace', and took over 'Kit Carson' from Rino Albertarelli. In 1941, Molino began a collaboration with Domenica del Corriere, for which he created numerous cover illustrations, humorous drawings and illustrated stories. In 1946, he created sentimental stories for 'Grand Hotel', using a combination of wash and photographic techniques. Molino stopped drawing comic strips in the 1960s, and died in 1997.