Osmo Saarnio was born on May 20, 1914 in Helsinki, Finland as Osmo Kalervo Saarnio. He was an actor, known for Serenaadiluutnantti (1949), Miehen vankina (1943) and Katarina kaunis leski (1950). He was married to Elvi Saarnio. He died on April 28, 1953.