Cheng Wei-Hao was born in 1984. He gained a master degree from the Department of Film at the National Taiwan University of Arts. In 2008, his first short, You Are Not Alone, won numerous awards. Moreover, his 2015 short, Bao quanyuan zhi si (2015) (The Death of a Security Guard), won Best Short Film at the Taipei Film Awards as well as the Golden Horse Awards in the same year. The Tag-Along (2015) is Cheng's first feature.