How old was Johannes Guter in The four from Bob 13?

Gretl TheimerGretl Theimer was 21 in The four from Bob 13 as 'Mary'.

Birthday: Sat, Nov 26 1910 –
Sun, May 14 1972

Hans JunkermannHans Junkermann was 60 in The four from Bob 13 as 'Kapitän Garden'.

Birthday: Sat, Feb 24 1872 –
Sat, Jun 12 1943

Teddy BillTeddy Bill was 31 in The four from Bob 13 as 'Schmidt'.

Birthday: Sun, Nov 18 1900 –
Fri, Feb 11 1949

Elisabeth PinajeffElisabeth Pinajeff was 31 in The four from Bob 13

Birthday: Tue, Apr 17 1900 –
Sun, Dec 31 1995

Werner FuettererWerner Fuetterer was 25 in The four from Bob 13 as 'Treß'.

Birthday: Thu, Jan 10 1907 –
Thu, Feb 07 1991

Fritz RaspFritz Rasp was 40 in The four from Bob 13 as 'Schmidt'.

Birthday: Wed, May 13 1891 –
Tue, Nov 30 1976

Johannes GuterJohannes Guter was 49 in The four from Bob 13 as 'Director'

Birthday: Tue, Apr 25 1882 –
Sun, Mar 18 1962

Curt J. BraunCurt J. Braun was >> in The four from Bob 13 as 'Writer'

Birthday: Unknown Birthday