Onni Timonen was born on June 29, 1911 in Kitee, Finland as Onni Armas Timonen. He is known for his work on Pikku Pietarin piha (1961), 'Minä elän' (1946) and Kolmastoista koputus (1945). He was married to Sirkka Joutsela. He died on December 20, 1976.