The four ghosts in A Christmas Carol are the Ghost of Christmas Past, the Ghost of Christmas Present, the Ghost of Christmas Yet to Come, and the Ghost of Jacob Marley. The Ghost of Christmas Past takes Scrooge back in time to see his earlier life, the Ghost of Christmas Present shows Scrooge the consequences of his actions, the Ghost of Christmas Yet to Come shows Scrooge the future if he continues on his current path, and the Ghost of Jacob Marley warns Scrooge about the fate that awaits him if he does not change his ways.