Here it is asked how an actor of Hamlet should perform. From there the purpose of Hamlet’s madness is explained. “ It isn't that he simply goes crazy: he utilizes his sharp wit to get at Claudius and the new king's chief spy, Polonius. Hamlet's madness is very different from the madness Ophelia suffers. Heartbreakingly, Ophelia really does go mad - she loses her wits. Hamlet on the other hand remains lucid but uses a disguise of madness (the 'antic disposition') to get him to where he needs to be. Polonius tells Claudius straight away that Hamlet is mad because, the company decided, if Hamlet is known to be mad, he is no longer a threat to the king and cannot accede the throne. That is why Claudius latches on to the idea of Hamlet's madness and why Gertrude is so reticent to believe her son has lost his