Jiang Wen

Lang Guoren

Ma Li

Zhou Xiulan

Zhang Chenghao

Childhood Lang Lang

Yu Hewei

Lao Cui

He Saifei

Ou Ya

Ding Zhicheng

Old Policeman

Wang Longshuo

Young Lang Lang

Xin Zhilei

Teacher Lin

Lei Jiayin

Second Uncle

Ge You

Wang Ziyue

Wang Chuanjun

Chu Zhongtian

Hu Ge

Mr. Hu

Lu Yi

Teenager Lang Lang

Donnie Yen

Alex Yang

Mark Lee Ping-Bing

Zhuge Bole

Li Ziwei

Director

Jonathan Kos-Read

Holmes

Gina Alice Redlinger

Gina's Mother

Jiang Mahu

Student

Jiang Sanyi

Student

Sun Yun

AJ Donnelly

Arenberg

Yu Hewei

Cui

Yu Ailei

Jian Sun