Hamlet (4.5-4.7)

"How came he dead? I'll not be juggled with. / Ti hell, allegiance! Vows, to the blackest devil! / Conscience and grace, to the profoundest pit! / I dare domination. To this point I stand, / That both the worlds I give to negligence, / Let come what comes, only I'll be revenged / Most throughly for my father" (4.5.148-154)

Laertes has learned from Claudius that Hamlet has killed Laertes's father, Polonius, and in a rage, Laertes vows to avenge his father's death. Immediately, the reader can see a huge contrast within the characters of Hamlet and Laertes. Hamlet's father died two months before Hamlet even thought about seeking revenge, and it was only after his father's ghost told him about the murder, as well as the play to begin to plot out Claudius's death. On the other hand, as soon as Laertes learns that his father has died, he cries for revenge. It is possible that the reason for this difference in character is because Hamlet didn't immediately know how his father died, whereas Laertes learned that it was murder when he heard of it. Either way, both of these characters now have a thirst for revenge over their father's deaths, and it will be interesting to see how Hamlet will enact his revenge while Laertes tries to kill him.