Jaakko Jahnukainen was born on March 15, 1925 in Helsinki, Finland as Jaakko Juhani Jahnukainen. He was a writer and actor, known for Levyraati (1961), Kohti Wieniä (1967) and John & Johnny Molinari - hanuritaiteilijat (1967). He was married to Rauni Lemmikki Tikkanen. He died on October 8, 1980 in Helsinki.