Salazar wasn't always a ghost. He was the greatest hunter of pirates the Spanish Crown ever produced. He never lost a battle. He never left a survivor. That was until he cornered a young, unknown pirate named Jack Sparrow.
The scariest part? He can never step on land. He is stuck between life and death forever. That isn't a villain. That is a purgatory.
Forget Davy Jones. There is one ghost who scares even the sea.