Who is Hamlet?

The son of Old Hamlet and Gertrude, thus Prince of Denmark. The ghost of Old Hamlet charges him with the task of killing his uncle, Claudius, for killing him and usurping the throne of Denmark. Hamlet is a moody, theatrical, witty, brilliant young man, perpetually fascinated and tormented by doubts and introspection. It is famously difficult to pin down his true thoughts and feelings -- does he love Ophelia, and does he really intend to kill Claudius? In fact, it often seems as though Hamlet pursues lines of thought and emotion merely for their experimental value, testing this or that idea without any interest in applying his resolutions in the practical world. The variety of his moods, from manic to somber, seems to cover much of the range of human possibility.