Harry Ahlin was born on April 14, 1900 in Sundsvall, Västernorrlands län, Sweden as Karl Harry Ahlin. He was an actor and composer, known for Hamnstad (1948), Kronblom kommer till stan (1949) and Tull-Bom (1951). He was married to Doris Nelson, Astrid Margareta Åstrand and Gertrud Danielsson.