Ship's Captain
The captain issues orders. The best captains have high Intelligence and Charisma scores, as well as proficiency with water vehicles and the Intimidation and Persuasion skills.
I really do try to make most of this original, but since Forgotten Realms is an integral part of the world I can't help if anything is used without formal permission, but is still "fair use" as I am just using this for my private games.