Suffering throughout his teens from lung ailments, including tuberculosis, Bernhard spent the years 1949 to 1951 at the Grafenhof sanatorium in Sankt Veit im Pongau. He trained as an actor at the Mozarteum in Salzburg (1955–1957) and was always profoundly interested in music. His lung condition, however, made a career as a singer impossible. After that he worked briefly as a journalist, mainly as a crime reporter, and then became a full-time writer. In 1970, he won the Georg Büchner Prize.