Hier sind sie!
~ Rolf whistles for the other soldiers

Rolf is an antagonist in the musical The Sound of Music. First, he's a young postman who fell in love with one of the Von Trapp's Liesl. He also made plans with her to marry later. But later, when the Von Trapp family is trying to escape from Austria, Rolf became part of a Nazi-army. When the Von Trapps are close to escape, Rolf and other Nazi-soldiers hunt them. Baron Von Trapp tries to convince Rolf. Rolf gives him his gun, but suddenly he whistles after the other soldiers. Despite the efforts of the soldiers, the Von Trapps escape.