You can't.
No
Yes, she is. But she does not play a major role.
I'm trying to figure out but it surely does play. Nick Jonas said himself during their webchat on 3rd March, 2010.
yes
The New York City premier will play on July 8th. Harry Potter and the Half-Blood Prince publicly releases on July 15th, 2009 in the United States.
He Plays Marcus Belby In The Half Blood Prince (He Is A Ravenclaw Student)
I think you can only be harry potter for the whole game
Robert Knox was an actor in Harry Potter and the Half-Blood Prince. He played Marcus Belby.
theres not really a two player mode but two players can duel
No en less you use some downloading thing to down it for free
No. Jennifer Smith played Lavender Brown in Harry Potter and the Prisoner of Azkaban, she did not return for Half-Blood Prince.
X-box