Ronald Weasley

Ronald Weasley is Harry Potter's best friend. He met him on the train to Hogwarts for the first time. They became fast friends. Ron was sorted into Gryffindor. He is the only pure-blooded wizard in the trio of Harry, Hermione and Himself. He is headstrong and always getting into trouble. He is brave though, and fiercely loyal.
He skipped his last year along with Harry and Hermione to destroy Voldemort's Horcruxes. (This adventure will be released soon in the Harry Potter and the Deathly Hallows movie.)
He has always been the funny one, and loves to crack jokes. Hermione was frequently frustrated with Ron's immaturity, once commenting that he had the "emotional range of a teaspoon." In the search for the Horcruxes though, he matured a lot, even leading the team when Harry was debilitated.