Answer
Harry Shum Jr. was Katie Leung's co-star in the miniseries One Child. He played the role of Wei Cheng, a Chinese-American teenager who is sent to live with his grandparents in China after his parents are killed in a car accident. Leung played the role of Cheng's sister, Wen Jing. The miniseries follows the siblings as they adjust to their new lives in China and learn about their Chinese heritage.