He's the antagonist.
Claudius hopes that Hamlet will be killed in England. Claudius is the King and is also the brother of Hamlet.
Claudius was hamlets Uncle and later became his stepfather because his mother Queen Gertrude married Hamlets uncle "Claudius".
His brother, Claudius, came out into the garden while King Hamlet was sleeping and poured poison into his ear.
Claudius is married to Gertrude (Hamlet's mother and widow to the former king).
Claudius, the king is Hamlet's major antagonist. He is a shrewd, lustful, conniving king who contrasts sharply with the other male characters in the play. Whereas most of the other important men in Hamlet are preoccupied with ideas of justice, revenge, and moral balance, Claudius is bent upon maintaining his own power. The old King Hamlet was apparently a stern warrior, but Claudius is a corrupt politician whose main weapon is his ability to manipulate others through his skillful use of language. Claudius's speech is compared to poison being poured in the ear-the method he used to murder Hamlet's father. Claudius's love for Gertrude may be sincere, but it also seems likely that he married her as a strategic move, to help him win the throne away from Hamlet after the death of the king. As the play progresses, Claudius's mounting fear of Hamlet's insanity leads him to ever greater self-preoccupation; when Gertrude tells him that Hamlet has killed Polonius, Claudius does not remark that Gertrude might have been in danger, but only that he would have been in danger had he been in the room. He tells Laertes the same thing as he attempts to soothe the young man's anger after his father's death. Claudius is ultimately too crafty for his own good. In Act V, scene ii, rather than allowing Laertes only two methods of killing Hamlet, the sharpened sword and the poison on the blade, Claudius insists on a third, the poisoned goblet. When Gertrude inadvertently drinks the poison and dies, Hamlet is at last able to bring himself to kill Claudius, and the king is felled by his own cowardly
Gertrude, Hamlet's mother and wife of his Uncle Claudius, King of Denmark.
Hamlet's uncle Claudius killed Hamlet's father (called Hamlet Sr.). The ghost of Hamlet Sr. comes back from the dead and tells Hamlet Jr. so. Hamlet Jr. confirms this by re-enacting the murder as a play, which upsets Uncle Claudius.
No, after the dual. Claudius lets Hamlet's mother die, and Hamlet and Lateres both wound each other, than Hamlet forces the poison down Claudius' throat.
Claudius sends Hamlet to England, but he doesn't get there.
In many interpretations, the serpent in Genesis symbolizes temptation, deceit, and evil. It is often seen as a metaphor for the devil or Satan, who tempts Eve to eat from the forbidden tree. This act leads to the Fall of Man in the Christian tradition.
Claudius is the antagonist, which is not the same thing as a rival. A rival is someone who wants the same thing as you want, when only one of you can have it. Hamlet does not want anything which only one person can have except perhaps the love of Ophelia, for which he has no competition.