你行！你上！

강문

Lang Guoren

马丽

Zhou Xiulan

Zhang Chenghao

Childhood Lang Lang

于和伟

Lao Cui

하새비

Ou Ya

丁志诚

Old Policeman

Wang Longshuo

Young Lang Lang

辛芷蕾

Teacher Lin

雷佳音

Second Uncle

葛优

Wang Ziyue

왕전군

Chu Zhongtian

호가

Mr. Hu

Lu Yi

Teenager Lang Lang

견자단

Alex Yang

李屏賓

Zhuge Bole

Li Ziwei

Director

曹操

Holmes

Gina Alice Redlinger

Gina's Mother

Jiang Mahu

Student

Jiang Sanyi

Student