who played rolf in the sound of music
Daniel Truhitte Daniel Lee Truhitte (born September 10, 1943 in Sacramento, California) is an American actor, best known for his portrayal of Rolfe Gruber, the young Austrian telegraph delivery boy who performed "Sixteen Going on Seventeen", in the film The Sound of Music (1965). Truhitte is a singer, actor, dancer, and teacher of young performers.