Gretl Theimer (1910–1972) was an Austrian actress and singer. After completing ballet training, Theimer performed in the children's ballet at the Vienna State Opera. She first made a name for herself as an operetta singer on Austrian and German stages. Her screen debut in musical film 'Zwei Herzen im Dreivierteltakt', one of the first sound films, made Gretl Theimer a popular film star overnight...
