Final answer:
The ghost of the late King Hamlet of Denmark appears in Shakespeare's play 'Hamlet' and is seen by several characters including Horatio, symbolizing deeper themes and historical contexts.
Step-by-step explanation:
The ghost mentioned in the question refers to the late King Hamlet of Denmark from William Shakespeare's play, 'Hamlet'. In the play, the ghost appears to several characters, including Horatio, who is a friend of Prince Hamlet and a fellow student at the University of Wittenberg.
The ghost's appearance and the subsequent interactions with Prince Hamlet drive the plot of the play, leading Hamlet to contemplate the themes of revenge, life, death, and the supernatural. Horatio's initial skepticism about the ghost reflects the tension between reason and the supernatural in the play.
This ambiguous ghost can be seen as symbolizing the oppression of Catholics during Shakespeare's time period, adding a layer of historical context to the narrative.