Duane Chase (born December 12, 1950) is a former actor best remembered as Kurt von Trapp in The Sound of Music (1965). He started acting in commercials when he was 11, along with a bit of modelling work. He left show business after high school, moving out of Los Angeles and for a time fought fires with the forestry service.
He is now a computer software analyst/designer for oil and mining companies. He enjoys climbing mountains and lives outside of Seattle, Washington.
From Wikipedia
Duane Chase (born 12 December 1950) is an American geologist, forester, and former actor who appeared as Kurt von Trapp in The Sound of Music (1965). He also had a small role in the family film Follow Me, Boys! (1966) and played Danny Matthews in The Big Valley for one episode.