Skeleton Captains acts as a minor boss enemy in Sea of Thieves. Captain's can be identified by the name above their heads and the notable difference in clothing compared to other Skeletons. The Captain's have higher health than normal skeleton enemies, taking more time to defeat.
Fortress Skeleton Captains can be found in active Skeleton Forts after all other waves are defeated. They are typically guarded by hordes of less powerful "grunt" Skeletons and possess more firepower and HP.