We presume Chief Navigator refers to a job piloting London Traction City.
Gittens is the son of popular New Zealand actor Paul Gittens and a fairlywell-knownn scriptwriter called Phillipa Boyens.
That name should ring a bell....
Gittens made a name for himself on the Kiwi soap opera Shortland Street and a few parts in LOTR (He features as the young lad on The Wall in The Two Towers) and The Hobbit.
Another notable screen credit was a turn in The King's Speech.
