Johan Marius Nicolaas "Johannes" Heesters (5 December 1903 – 24 December 2011) was a Dutch actor, singer, and entertainer with a career dating back to 1921. Active almost exclusively in the German-speaking world from the mid-1930s, he was a controversial figure for his actions during the Second World War and alleged support for the Nazi Party.
Ilse Werner (born Ilse Charlotte Still on 11 July 1921 in Batavia, Dutch East Indies (now Jakarta, Indonesia); died 8 August 2005 in Lübeck) was an actress and singer. She was born to a Dutch father and a German mother and was a Dutch citizen by birth. Although she had her greatest successes in Germany (mainly during the time of the Third Reich), she did not assume German citizenship until 1955.
Herbert Ernst Groh was a Swiss tenor, born on 27th of May 1906 in Luzern (Switzerland). He died on the 28th July 1982 near Hamburg (Germany). He studied singing in Zurich and Munich and had his debut in 1927 at the theater of Darmstadt. Soon the radio got aware of his talent and by 1933 he was working for a German radio station.