Harry's Godfather.
No, you can only play as Harry, Fred, Sirius and Dumbledore.
Gary Oldman plays the part of Harry's godfather, Sirius Black. http://content.answers.com/main/content/img/PosterThumbs/gary_oldman.jpg
Chloe Moretz does NOT play a character in Harry Potter she just went to the premiere of Harry Potter and the Deathly Hallows Part One. She has been in other films such has the movie Let Me In.
J.K. Rowling is not a character in Harry Potter, she is the author. Rowling was similar to Hermione Granger when she was younger.
no none of them do
Daniel Radcliffe plays Harry Potter from the books by J.K. Rowling.
He doesn't play a character in the Harry Potter movies, he is part of the transportation unit in the first and second movie as well as the fourth and fifth movie.
Harry Potter is a famous character not an actor. He doesn't actually exist.Daniel Radcliffe portrays Harry Potter in the movies, he is a famous actor from England.
Cedric D. in GOF
Dolores Umbridge.
Dean Thomas
Rupert Grint plays Ron Weasley is Harry Potter and the Prisoner of Azkaban. He plays this character in every Harry Potter film.