<Li> Taraji P. Henson as Sherry Parker (雪 莉 ∙ 帕克 Xuělì Pàkè) Dre's mother, who is very protective of him . </Li> <Li> Wenwen Han (韩雯雯) as Meiying (美 莹 Měiyíng) Dre's crush who quickly befriends him, and eventually becomes his girlfriend . </Li> <Li> Zhenwei Wang as Cheng (陆伟程 Lù Wěichéng) The primary antagonist; the school bully and top student of Master Li . </Li> <Li> Yu Rongguang as Master Li (李 师傅 Lǐ - shīfu) A kung - fu teacher who instructs his students to be merciless towards their enemies . </Li>

Who plays cheng in the karate kid 2010