Collectively they are the crew. Individuals may be called crew members, mariners or sailors.
Crew Member
Sailors work on ships.
The crew or passengers or sometimes sailors or hands.
Mayday I think
Passenger
People who travel by ship are called Passengers.
Sailers
Doctor?
The Crew.
Sailors and ship's officers.
they call their ship SHE
Sailors (a.k.a. Sea-Men)
A stop for a ship is called a port of call. A cruise ship might be said to make a stopover (or port call) at a port of call.
A ship that carries cars and sometimes people on short journies is a liner. They are quite big, but not as big as a ferry.
they called it that because back in its day it was an amazingly advanced ship and the designers declared it unsinkable themselves
a ship maker.
a ship sinker