Who is the mythological figure who ferried the dead across the river Styx into Hades what moon is he?

The mythological figure who ferried the dead across the river Styx into Hades is Charon. He is often depicted as a grim figure who requires payment for his services, typically in the form of an obol, a small coin placed in the mouths of the deceased. In terms of celestial associations, Charon is also the name of one of Pluto's moons, named after the mythological figure.