Kauko Hynninen was born on March 10, 1933 in Joroinen, Finland as Kauko Kalervo Hynninen. He was an actor, known for Kaikki minun poikiani (1966), Ajolähtö (1982) and Omat koirat purivat (1974). He was married to Leena Rouvinen. He died on December 21, 1989 in Kuopio, Finland.