你行！你上！

Jiang Wen

Lang Guoren

马丽

Zhou Xiulan

Zhang Chenghao

Childhood Lang Lang

于和伟

Lao Cui

何赛飞

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

王传君

Chu Zhongtian

胡歌

Mr. Hu

Sin foto

Lu Yi

Teenager Lang Lang

Donnie Yen

Alex Yang

李屏賓

Zhuge Bole

Sin foto

Li Ziwei

Director

Jonathan Kos-Read

Holmes

Gina Alice Redlinger

Gina's Mother

Jiang Mahu

Student

Sin foto

Jiang Sanyi

Student

Sin foto

Sun Yun

AJ Donnelly

Arenberg

于和伟

Cui

余皑磊

Jian Sun