How old was Ralph Arthur Roberts in Der Frauenkönig?

Georg AlexanderGeorg Alexander was 34 in Der Frauenkönig

Birthday: Tue, Apr 03 1888 –
Tue, Oct 30 1945

Esther CarenaEsther Carena was 24 in Der Frauenkönig

Birthday: Wed, Aug 24 1898 –
Wed, Jan 26 1972

Stella ArbeninaStella Arbenina was 37 in Der Frauenkönig

Birthday: Sun, Sep 27 1885 –
Mon, Apr 26 1976

Ralph Arthur RobertsRalph Arthur Roberts was 38 in Der Frauenkönig

Birthday: Wed, Oct 01 1884 –
Tue, Mar 12 1940

Margit BarnayMargit Barnay was >> in Der Frauenkönig

Birthday: Unknown Birthday

Jaap SpeyerJaap Speyer was 31 in Der Frauenkönig as 'Director'

Birthday: Sun, Nov 29 1891 –
Wed, Sep 17 1952

Johannes BrandtJohannes Brandt was 38 in Der Frauenkönig as 'Writer'

Birthday: Fri, Oct 31 1884 –
Thu, Mar 10 1955

Rudi FeldRudi Feld was 26 in Der Frauenkönig as 'Production Design'

Birthday: Tue, Dec 22 1896 –
Fri, Mar 25 1994