I wonder if you mean Duncan Robertson? Ended up Chief Mate in Rowbotham.A few blasts from the past:
Capt Terry(?) Luke... old school and professional
Capt Edward (Piggy?) Grant... the total opposite
Duncan... a BIG scots AB/bosun(?) who looked just like Hagrid from H.Potter
... and then there was Ray (speedy Gonzales) the little rotund, older, Argentinian(?) permanent 3rd officer ops (or maybe 4oo uncertified ?).