Cast 47

1. 

   Hong Isaac

   Tae-il

2. 

   Jang Ha-eun

   Ji-won

3. Seo Young-jae

   Deok-ho

4. Jang Da-hyeon

   Bok-soon

5. Yang Tae-hwan

   Ki-tae

6. Cha Min-ho

   Bae-dol

7. Hwang Da-sol

   Ho-tae

8. Lee Na-woo

   Dong-hoon

9. Hwang Min-jae

   Chan-gyoo

10. 

    Chae Yeon-jung

    Representative Kim

11. 

    Choi Yeon-soo

    Gemma

12. Go Tae-hee

    Hae-min

13. Ja I-ro

    Sang-jae

14. 

    Kim Eui-sung

    Director Ahn

15. Kim Sang-hoon

    Sang Mi-nem

16. 

    Uhm Yoon Jung

    Assistant

17. Song In-seop

    Min-seop

18. Kim Yeong-jin

    Min-seop's Band Drummer

19. Jeon Yong-joon

    Min-seop's Band Pianist

20. Park Chan-yeong

    Cellist

21. Kim Yo-han

    High School Pianist

22. Park Hyeon-woo

    Middle School Rapper

23. Kim Seong-hoon

    Famous Musician 1

24. Kim Ha-jin

    Famous Musician 2

25. Yang Ji-wan

    Famous Musician 3

26. Jeon Hwa-ryeong

    Famous Musician 4

27. Hyeon Seok-joon

    Male High School Student

28. Woo Hyeon-seo

    Female High School Student

29. Jeong Jae-hoon

    Finals Contest MC

30. Go De-i

    Ukulele Elementary School Student

31. Lee Yeong-seo

    Big Friend

32. Sin Dong-ho

    Finals Judge 1

33. Jang Hong-mi

    Finals Judge 2

34. Lee Won-min

    Finals Judge 3

35. Kim Seong-ah

    Middle-aged Woman

36. Kang Min-seok

    Hae-min's Dance Team 1

37. Kim Yoo-bin

    Hae-min's Dance Team 2

38. Tak Jae-min

    Hae-min's Dance Team 3

39. Lee Hwa-ik

    Sang-jae Band's Sessions Member 1

40. Jeong Gwang-hee

    Sang-jae Band's Sessions Member 2

41. Hwang Dae-hyeon

    Sang-jae Band's Sessions Member 3

42. Lee Sang-il

    Music Video Senior Director

43. Kim Mi-kyeong

    Music Video Staff

44. Lee Ji-hyeon

    Finals Participant 1

45. Jeong Woo-jae

    Finals Participant 2

46. Ryoo Han-jong

    Entertainment Staff

47. Jo Pil-seong

    Musician in the Picture

Crew 11