Nobody.
Horatio does say that the late King Hamlet "smote the sledded Polacks on the ice." but it is hardly the same thing.
Bernardo. He says, "Who's there?"
Horatio is a fellow student of Hamlet's who clearly loves him. Laertes is a Dane of about Hamlet's age, although of less exalted birth. Hamlet respects him and calls him "a most noble youth", while Laertes says of Hamlet's apology to him, "I am satisfied in nature" although it is difficult to believe anything he says at this stage. Fortinbras is probably as close to a peer as Hamlet has in the play, and he says "he was likely, had he been put on, to have proved most royal". While we do not know what Fortinbras's basis was for such a statement it surely confirms that Fortinbras respected Hamlet.
Horatio is the only main character in Hamlet to survive the final scene. However Fortinbras also survives the play, and some might consider his a main character. Though he doesn't appear until the end of the play, he is referenced numerous times, and ultimately becomes the new king of Denmark.
She does. She says: No, no, the drink, the drink,--O my dear Hamlet,--The drink, the drink! I am poison'd.
In Act 3, Scene 2 Hamlet says: "the purpose of playing...to hold as 'twere the mirror up to nature; to show virtue her own feature, scorn her own image, and the very age and body of the time his form and pressure." (Lines 17-20)
Bernardo. He says, "Who's there?"
If you are asking which character says it, it's Hamlet in the play Hamlet, Act 3 Scene 1. Phrases cannot own people.
The character who says this line is Banquo in Shakespeare's play "Macbeth." This statement reveals his shock and dismay at being betrayed by Macbeth and murdered unjustly. The line highlights the sense of treachery and wrongdoing surrounding Banquo's death.
Hamlet says it to himself in the play: The Tragedy of Hamlet, Prince of Denmarke
The Shakespearean character Hamlet says the phrase "To be or not to be" as part of an immensely famous speech in Act 3 Scene 1 of the play Hamlet. Whether he "belongs" to the phrase is something else, and I'm not sure exactly what that means.
The quote "Neither a borrower nor lender be" is from William Shakespeare's play "Hamlet." It is spoken by the character Polonius in Act 1, Scene 3 as part of his advice to his son Laertes before he leaves for France.
Polonius says it, but he does so in a long-winded way.
Hamlet
It's a quote from Hamlet. Hamlet says it at Ophelia's funeral.
Horatio is a fellow student of Hamlet's who clearly loves him. Laertes is a Dane of about Hamlet's age, although of less exalted birth. Hamlet respects him and calls him "a most noble youth", while Laertes says of Hamlet's apology to him, "I am satisfied in nature" although it is difficult to believe anything he says at this stage. Fortinbras is probably as close to a peer as Hamlet has in the play, and he says "he was likely, had he been put on, to have proved most royal". While we do not know what Fortinbras's basis was for such a statement it surely confirms that Fortinbras respected Hamlet.
Hamlet is a fictitious character. He was not really born and did not really die. Unless it says something in the text of the play about it, and it doesn't, there can be no answer to this question.
He did indeed. It's the most famous thing he says. He says it in Act III Scene 1 of the play.