How old was Vlasta Burian in The wrong field marshal?

Vlasta BurianVlasta Burian was 39 in The wrong field marshal as 'Rittmeister Alois Buschek'.

Birthday: Thu, Apr 09 1891 –
Wed, Jan 31 1962

Alexander Roda-RodaAlexander Roda-Roda was 58 in The wrong field marshal as 'Der Feldmarschall'.

Birthday: Sat, Apr 13 1872 –
Mon, Aug 20 1945

Fee MaltenFee Malten was 19 in The wrong field marshal as 'Gusti Gewitsch'.

Birthday: Sat, Dec 02 1911 –
Sat, Dec 31 2005

Karel LamačKarel Lamač was 33 in The wrong field marshal as 'Director'

Birthday: Wed, Jan 27 1897 –
Sat, Aug 02 1952