Cho Chang
Background
Cho Chang is a witch from house Ravenclaw and student at Hogwarts School of Witchcraft and Wizardry.
During the events of Harry Potter and the Goblet of Fire (2005) played by Katie Leung
On the Hogwarts Express, Food Trolley Lady asks if anyone wants something. As Harry Potter is looking at the trolley, Cho walks up and buys something from the trolley and she and Harry smile at each other. Padma Patel and Parvati Patel say hello to Harry as they walk by, but he focuses his attention on Cho. Harry eventually asks Cho to the Yule Ball, but she apologizes and tells him she already said she would go with someone else. On the day of the ball, Cedric Diggory goes with Cho. During the second challenge of the Triwizard Tournament, each challenger must collect a loved one from the Black Lake. Cedric frees Cho and ties with Harry for second place.