Rudolf Dehnert was an artist for Rolf Kauka's Fix und Foxi from 1956 to 1960. He also succeeded Werner Hierl as chief artist in the studio. In this occupation, he hired the female artists Melitta Ullmann and Sieglinde Sander, and crafted many of the weekly's cover illustrations. He also created comics and is credited as the creator of new characters like Lupinchen. He moved to the USA in 1960, where he worked at the Harvey animation studios. He was succeeded as chief Kauka artist by Franz Roscher.