Horatio: The Witness Who Survives

Horatio is the most rational person in Elsinore and the one Hamlet trusts entirely. He is not a Dane by birth, not entangled in the court's politics, not seduced by ambition. That detachment is what makes him invaluable. He can see clearly when everyone around him cannot.

His friendship with Hamlet is the play's one unambiguously good relationship. When Hamlet says 'Give me that man that is not passion's slave, and I will wear him in my heart's core,' he is describing Horatio, and by extension, the kind of stability Hamlet himself can never achieve.

At the end, Hamlet stops Horatio from drinking the poisoned cup. He needs someone to survive and tell the story accurately. Horatio is the only character given that responsibility, and the weight of it ('flights of angels sing thee to thy rest') is the play's most direct expression of grief.