Yes, if he outlives everyone ahead of him in the line of succession, or if everyone ahead of him either dies or abdicates.
1. The Queen
4. Any legitimate children Prince William has (none at the moment, but it is expected Kate will get pregnant soon after the wedding)
Yes, he can. He needs his father, Charles and his brother William to die. He then will be next in line to the throne.
Prince Harry is currently fifth in line to the throne so it is very unlikely that he will become King, but not impossible.
It's unlike Prince Harry will ever be king, his Older Brother would have to die before Harry and childless for Harry to be in line to become King. However should Prince Harry become King he'd be King Henry IX (though the Monarch can choice what ever name he or she wishes and to date no name in the British monarchy has been used more than 8 times, so Harry might in this case choice a different name)
It's unlike Prince Harry will ever be king, his Older Brother would have to die before Harry and childless for Harry to be in line to become King. However should Prince Harry become King he'd be King Henry IX (though the Monarch can choice what ever name he or she wishes and to date no name in the British monarchy has been used more than 8 times, so Harry might in this case choice a different name)
Prince Harry is not a king. His title is Prince Henry of Wales.
William is older, and so ahead of Harry in the line to the throne.
I'm guessing, that if they had a daughter, basically who ever she decides to marry =)
His eldest son, William. Prince Harry his 2nd son is 3rd in line to the throne.
Prince William is second in line to the throne, Prince Harry is fifth in line.
Currently, the next royal in line of succession is Queen Elizabeth's second oldest son, Prince Andrew, the Duke of York.
Kate Middleton will become a princess when she marries Prince William. If William becomes king, Kate would then become queen. If Queen Elizabeth II abdicates the throne to Prince Harry however, Kate will remain a princess. This would seem unlikely considering William is in line to the throne before Harry.
mollie king
If Prince Charles dies, Prince Andrew will not become King because Prince Charles has two sons, Princes William and Harry. As Charles is heir to the throne, if he dies, his eldest son William will become heir.