How old was Étienne Arnaud in Duty?

Alec B. FrancisAlec B. Francis was 46 in Duty as 'Dr. Alexander'.

Birthday: Sun, Dec 01 1867 –
Fri, Jul 06 1934

Belle AdairBelle Adair was 25 in Duty as 'Isabel, the Doctor's Wife'.

Birthday: Thu, Feb 07 1889 –
Tue, May 04 1926

Robert FrazerRobert Frazer was 23 in Duty as 'Jack Welby'.

Birthday: Sun, Jun 28 1891 –
Thu, Aug 17 1944

Helen MartenHelen Marten was 20 in Duty

Birthday: Mon, Jan 01 1894

Étienne ArnaudÉtienne Arnaud was 34 in Duty as 'Director'

Birthday: Thu, Sep 04 1879 –
Thu, Mar 10 1955