Series Cast 20

1. 

   Lee Sang-yeob

   Kim Tae-young (12 Episodes)

2. 

   Kim So-hye

   Lee Kwon-sook (12 Episodes)

3. 

   Kim Jin-woo

   Han Jae-min (12 Episodes)

4. 

   Park Ji-hwan

   Kim Oh-bok (12 Episodes)

5. 

   Kim Hyeong-mook

   Lee Chul-yong (12 Episodes)

6. 

   Yoon In-Jo

   Lee Young-ae (12 Episodes)

7. 

   Ha Seung-lee

   Jung Soo-yeon (12 Episodes)

8. 

   Chae Won-been

   Han Ah-reum (12 Episodes)

9. 

   Kim Sang-woo

   Go Seon-jae (12 Episodes)

10. 

    Do Eun-ha

    Jo Ah-ra (12 Episodes)

11. 

    Lim Young-joo

    Park Hye-jin (12 Episodes)

12. 

    Kim Hee-chan

    Choi Ho-jung (12 Episodes)

13. 

    Song Ye-bin

    Ms. Eun-sol (12 Episodes)

14. 

    Lee Song-yi

    Small Teacher (12 Episodes)

15. 

    Choi Jae-woong

    Kim Hee-won (12 Episodes)

16. 

    Seong No-jin

    Trainer Song (12 Episodes)

17. Kim Seon-gi

    Big Teacher (12 Episodes)

18. Kim Sang-bo

    Park Kyung-soo (12 Episodes)

19. Nam Tae-woo

    Yang Man-hee (12 Episodes)

20. 

    Min Kyeong-ok

    Moon Jung-hee (12 Episodes)

Series Crew 4