Sand studied acting at Norway's National Theatre from 1947 to 1949; after graduation, he continued his employment at the theater. Some of his stage credits include Glad Hand in West Side Story, The King and I and the Rabbi in Fiddler on the Roof. He is best known in Norway for playing Gammel Bør in the play Bør Børson (1972), and repeating the role in the two movies based on the play, Bør Børson Jr. (1974) and Bør Børson II (1976).