演员 17

1. 

   黄渤

   Dawang

2. 

   荣梓杉

   Xiaotian

3. 

   陈思诚

   Mozart (voice)

4. 

   Huangyang Tiantian

   Ding Jieling

5. 

   姚晨

   Niu Yuxia

6. 

   范伟

   Grandpa Xiaotian

7. 

   贾冰

   Teacher Deng

8. 

   许君聪

   Scarface

9. 

   梅婷

   Ren Xiaotian's mother

10. 

    郎朗

    Lang Lang

11. 

    黄觉

    Ding Jieling's father

12. 

    于洋

13. 

    范湉湉

    Xue Xihao's mother

14. 

    桑平

    Ma Yuan's father

15. 

    Yang Jinci

    Twins' father

16. 

    李明轩

    Police

17. Li Zeyu

工作人员 8