René Lehner grew up with comic books and started drawing at a young age. In 1974, he co-founded Comixene, the first German comics fanzine. At the same time he was selling his first comic strips to various publishers. After leaving Comixene he began publishing his cartoons on his own. By 1981, he was living in Spain, where he worked for publishers, magazines and Swiss television. In 1986, he Lehner returned to Switzerland and created the daily strip about 'Bill Body', a sports enthusiast with an egg-shaped head.
Lehner also produced weekly strips like 'Willy' and 'Zoo Klamauk'. Throughout the years, his comics have appeared in dozens of magazines all over Europe. For WWF, he set up the children's series 'Gabi Grün'. In 1988, he settled in Hamburg, where he worked on animation films with 'Bill Body' for German commercial television, and on his new science-fiction series 'Fred Flamingo'. Back in Zürich in 1990, he cooperated with his wife on the weekly strip 'Peach Webber', starring the comedian, who also wrote the scripts. In 1997, he launched the erotic series 'Freudendorf' in Blick, and he also wrote the scripts for 'Max und Moni' in Schweizer Illustrierten (art by Rainer Benz).