Olle Berg was born in Stockholm and grew up on the small island of Lidingö. His father was the cartoonist known as Rit-Ola. He studied graphic design at Konstfack, where he graduated in 1980. A year earlier he had co-founded Galago, the comics magazine that launched a new wave of Swedish comics artists. He was one of the few Swedish artists that found its way to the American Heavy Metal magazine. He worked as staff artist for newspaper Svenska, and also as a drawing teacher.
In 1986, he started to make comics for magazines Nöjesguiden, Gaudeamus and later Larson and newspaper Dagens Nyheter. His comics album 'Zen' was published in 1989, and 'Bonk' in 1997. In 1995/96, some of his comics appeared in German newspaper Die Zeit. Apart from his comics work, Olof Berg is also an illustrator and animator.