Series Cast 18

1. 

   Shin Yoo-mi

   Vocal coach (12 Episodes)

2. Kwon Jae-seung

   Dance coach (12 Episodes)

3. 

   Lee Dong-wook

   Mc (12 Episodes)

4. 

   Lee Seok-hoon

   Vocal coach (12 Episodes)

5. 

   Kim Eun-young

   Rap Coach (12 Episodes)

6. 

   Bae Yoon-jung

   Herself (12 Episodes)

7. 

   Lee Ha-min

   Himself (4 Episodes)

8. 

   Han Seung-woo

   Himself (1 Episode)

9. 

   Kim Yo-han

   Himself (1 Episode)

10. 

    Kang Min-hee

    Himself (1 Episode)

11. 

    Lee Eun-sang

    Himself (1 Episode)

12. 

    Son Dong-pyo

    Himself (1 Episode)

13. 

    Kim Woo-seok

    Himself (1 Episode)

14. 

    Cha Jun-ho

    Himself (1 Episode)

15. 

    Lee Han-gyul

    Himself (1 Episode)

16. 

    Nam Do-hyon

    Himself (1 Episode)

17. 

    Cho Seung-youn

    Himself (1 Episode)

18. 

    Song Hyeong-jun

    Himself (1 Episode)

Series Crew 1