How old was Hildegard Knef in Frühlingsmelodie?

Paul HenckelsPaul Henckels was 59 in Frühlingsmelodie as 'Franz Liebitz'.

Birthday: Wed, Sep 09 1885 –
Sat, May 27 1967

Hildegard KnefHildegard Knef was 19 in Frühlingsmelodie as 'Zwilling ohne Leberfleck'.

Birthday: Mon, Dec 28 1925 –
Fri, Feb 01 2002

Maria MildeMaria Milde was 23 in Frühlingsmelodie as 'Zwilling mit dem Leberfleck'.

Birthday: Thu, Mar 03 1921 –
Fri, Jan 21 2005

Hansi KnoteckHansi Knoteck was 30 in Frühlingsmelodie as 'Eva Aderholz'.

Birthday: Mon, Mar 02 1914 –
Sun, Feb 23 2014

Albert MatterstockAlbert Matterstock was 33 in Frühlingsmelodie as 'Otto Karnewaldt'.

Birthday: Wed, Sep 13 1911 –
Wed, Jun 29 1960

Hellmuth PassargeHellmuth Passarge was 50 in Frühlingsmelodie

Birthday: Sun, Nov 04 1894 –
Mon, Jan 01 1945

Hans Robert BortfeldtHans Robert Bortfeldt was >> in Frühlingsmelodie as 'Director'

Birthday: Unknown Birthday