He was the theatre director of Stavanger Teater from 1945 to 1947, then an actor at Rogaland Teater from 1953 to 1955 and 1956 to 1960, only interrupted by a period at Edderkoppen Teater from 1955 to 1956. He was also a singer. He started an impresario business in 1963, attracting country musician Jim Reeves to Norway.
His company Gunnar Eide Concerts, which was established in 1975, became a subsidiary of Live Nation and changed its name to Live Nation Norway.
He died in July 2012 in Oslo.