Cho Chang

We first met this Ravenclaw pupil in Harry Potter and the Prisoner of Azkaban, when she faced Harry in a Quidditch match as his rival Seeker – at that point she was the only witch on the Ravenclaw team. Although Harry quickly developed a crush on her, in Goblet of Fire, it was revealed that she was dating Hufflepuff (and Hogwarts champion), Cedric Diggory. Following the tragic climax of the Triwizard Tournament Cho vowed to fight back against the Dark Arts. As a result, she and Harry grew closer and eventually began dating. However, the pressures of fighting Voldemort meant their romance was short lived.