Charon
Χάρων
The old man who ferries the dead across the river — for a fare.
Souls who could not pay the fare had to wander the riverbank for a hundred years.
That is why the Greeks buried their dead with a coin placed in the mouth.
Pluto's largest moon is named Charon — the ferryman circling forever at Pluto's side.
SourcesVirgil, Aeneid