Series Cast 18

1. 

   Ji Chang-wook

   Yoon Gyeo-rea (16 Episodes)

2. 

   Sooyoung Choi

   Seo Yeon-joo (16 Episodes)

3. 

   Sung Dong-il

   Kang Tae-sik (16 Episodes)

4. 

   Won Ji-an

   Ha Jun-kyung (16 Episodes)

5. 

   Nam Tae-hun

   Jang Seok-jun (16 Episodes)

6. 

   Yang Hee-kyung

   Yeom Soon-ja (16 Episodes)

7. 

   Kil Hae-yeon

   Choi Deok-ja (16 Episodes)

8. 

   Yoo Soon-woong

   Hwang Cha-yong (16 Episodes)

9. 

   Jeon Chae-eun

   Yoo Seo-jin (16 Episodes)

10. 

    Shin Ju-hwan

    Yang Chi-hun (16 Episodes)

11. 

    Park Se-jun

    Wang Jin-gu (16 Episodes)

12. 

    Park Jin-joo

    Se Hee (3 Episodes)

13. 

    Min Woo-hyuk

    Pyo Gyu-Tae (3 Episodes)

14. 

    Jin Mo

    Musical director (1 Episode)

15. 

    Lee Kyu-young

    Audition security staff (1 Episode)

16. 

    Kim Si-eun

    Kang Soo-Jin (1 Episode)

17. 

    Kim Bong-soo

    Patient (1 Episode)

18. 

    Lee You-mi

    New volunteer (1 Episode)

Series Crew 2